due to the impact of the strong u.s. dollar on foreign currency , our large multi-national customers , who generate a significant amount of their revenues outside the u.s. , continue to be cautious . in the year ended december 31 , 2015 , online revenues from our top 12 global customers , which have the most international exposure , decreased slightly compared to the same period a year ago . online revenues from our mid-sized customers ( our next largest 100 customers , who have less exposure internationally ) increased by approximately 15 % year over year . revenues attributable to our smaller customers , which tend to be venture capital-backed start-ups that primarily operate in north america , increased by approximately 21 % over the prior year period . all three customer segments continued to report a challenging environment , and this translated into our customers remaining cautious with their marketing expenditures . our key strategic initiatives include : geographic  during 2015 , approximately 33 % of our online revenues were derived from international campaigns . international online revenues ( which also includes it deal alert revenues of $ 3.8 million as discussed below ) increased by approximately 12 % in the year ended december 31 , 2015 as compared to the same period a year ago . we continue to execute very well internationally as we continue to deepen our relatively new relationships with our customers in the united kingdom , france , germany , australia , singapore , china and latin america . due to the impact of the strong u.s. dollar on foreign currency , however , our largest customers continue to be cautious . product  it deal alert revenues were approximately $ 23.2 million in the year ended december 31 , 2015 , up from approximately $ 16.8 million in the same period in 2014. this includes international it deal alert revenues of $ 3.8 million , which is also included in international revenues as discussed above . in the fourth quarter of 2015 , we had over 288 active customers utilizing our it deal alert products and services ; this is up from 260 customers in the third quarter of 2015. we expect it deal alert to continue to be a meaningful growth driver into 2016. sources of revenues we sell customized marketing programs to it vendors targeting a specific audience within a particular it sector or sub-sector . we maintain multiple points of contact with our customers to provide support throughout their organizations and their customers ' it sales cycles . as a result , our customers often run multiple advertising programs with us in order to target their desired audience of it professionals more effectively . there are multiple factors that can impact our customers ' advertising objectives and spending with us , including but not limited to , it product launches , increases or decreases to their advertising budgets , the timing of key industry marketing events , responses to competitor activities and efforts to address specific marketing objectives such as creating brand awareness or generating sales leads . our products and services are generally delivered under short-term contracts that run for the length of a given advertising program , typically less than six months . in the year ended december 31 , 2015 , demand generation and brand advertising remained our primary sources of revenue , while data analytics-driven intelligence solutions , driven by growth in our it deal alert products and services , contributed approximately 22 % of online revenue as compared with approximately 17 % for the same period in 2014 . 39 the majority of our revenues are derived from the delivery of our online offerings . online revenue represented 94 % , 92 % and 90 % of total revenues for the years ended december 31 , 2015 , 2014 and 2013 , respectively . we use online and a select number of face-to-face event offerings to provide it vendors with numerous touch points to identify , reach and influence key it decision makers . the following is a description of the products and services we offer : online offerings it deal alert . it deal alert is a suite of products and services for it vendors that leverages the detailed purchase intent data that we collect about end-user it organizations . through proprietary scoring methodologies , we use this data to help our customers identify and prioritize accounts whose content consumption around specific it topics indicates that they are in-market for a particular product or service . we also use the data directly to identify and further profile accounts ' upcoming purchase plans . it deal alert : qualified sales opportunities . qualified sales opportunities is a product that profiles specific in-progress purchase projects , including information on scope and purchase considerations , in over 100 technology-specific segments . it deal alert : priority engine . priority engine is a subscription service powered by our activity intelligence platform , which integrates with salesforce.com . the service delivers information to allow marketers and sales personnel to identify accounts actively researching new technology purchases , and to reach active prospects within those organizations that are relevant to the purchase . we sell this service in approximately 300 technology-specific segments . it deal alert : deal data . deal data is a customized solution aimed at sales intelligence and data scientist functions within our customers that makes our activity intelligence data directly consumable by the customer 's internal applications . it deal alert : techtarget research . techtarget research is a newly launched subscription product that sources proprietary information about purchase transactions from it professionals who are making and have recently completed these purchases . the offering provides data on market trends , pricing dynamics and vendor win/loss and displacement trends . core online . story_separator_special_tag we review our allowance for doubtful accounts on a regular basis , and all past due balances are reviewed individually for collectability . account balances are charged against the allowance after all means of collection have been exhausted and the potential for recovery is considered remote . provisions for doubtful accounts are recorded in general and administrative expense . if our historical collection experience does not reflect our future ability to collect outstanding accounts receivable , our future provision for doubtful accounts could be materially affected . to date , we have not incurred any write-offs of accounts receivable significantly different than the amounts reserved . the allowance for doubtful accounts was $ 1.7 million and $ 1.0 million at december 31 , 2015 and 2014 , respectively . 45 stock-based compensation we measure stock-based compensation at the grant date based on the fair value of the award and recognize stock-based compensation in our results of operations using the straight-line method over the vesting period of the award . we use the black-scholes option pricing model to determine the fair value of stock option awards . we calculated the fair values of the options granted using the following estimated weighted average assumptions : replace_table_token_9_th the expected volatility of options granted in 2015 , 2014 and 2013 was determined using a weighted average of the historical volatility of our stock for a period equal to the expected life of the option . the risk-free interest rate is based on a zero coupon u.s. treasury instrument whose term is consistent with the expected life of the stock options . we have not paid and do not anticipate paying cash dividends on our shares of common stock ; therefore , the expected dividend yield is assumed to be zero . we applied an estimated annual forfeiture rate in determining the expense recorded in each year . internal-use software and website development costs we capitalize costs of materials , consultants and compensation and related expenses of employees who devote time to the development of internal-use software and website applications and infrastructure involving developing software to operate our websites . however , we expense as incurred website development costs for new features and functionalities since it is not probable that they will result in additional functionality until they are both developed and tested with confirmation that they are more effective than the current set of features and functionalities on our websites . our judgment is required in determining the point at which various projects enter the state at which costs may be capitalized , in assessing the ongoing value of the capitalized costs and in determining the estimated useful lives over which the costs are amortized , which is generally three years . to the extent that we change the manner in which we develop and test new features and functionalities related to our websites , assess the ongoing value of capitalized assets or determine the estimated useful lives over which the costs are amortized , the amount of website development costs we capitalize and amortize in future periods would be impacted . we review capitalized internal-use software and website development costs for recoverability whenever events or changes in circumstances indicate that the carrying amount of the asset may not be recoverable . we would recognize an impairment loss only if the carrying amount of the asset is not recoverable and exceeds its fair value . we capitalized internal-use software and website development costs of $ 2.9 million , $ 3.0 million and $ 3.6 million for the years ended december 31 , 2015 , 2014 and 2013 , respectively . income taxes we are subject to income taxes in both the u.s. and foreign jurisdictions , and we use estimates in determining our provision for income taxes . we recognize deferred tax assets and liabilities based on temporary differences between the financial reporting and income tax bases of assets and liabilities using statutory rates . our deferred tax assets are comprised primarily of book to tax differences on stock-based compensation and timing of deductions for deferred rent , accrued expenses , depreciation and amortization . as of december 31 , 2015 , we had a california net operating loss ( nol ) carryforward acquired from bitpipe of approximately $ 0.2 million which expires in 2018. we also had foreign nol carryforwards of $ 1.4 million , which may be used to offset future taxable income in foreign jurisdictions until they expire , through 2020. the deferred tax assets related to the california and foreign nol carryforwards have been fully offset by a valuation allowance . 46 additionally , we have a $ 0.2 million federal nol carryforward that will expire in 2034. net income ( loss ) per share we calculate basic earnings per share ( eps ) by dividing earnings available to common shareholders for the period by the weighted average number of common shares and vested , undelivered restricted stock awards outstanding during the period . because the holders of unvested restricted stock awards do not have nonforfeitable rights to dividends or dividend equivalents , we do not consider these awards to be participating securities that should be included in our computation of earnings per share under the two-class method . diluted eps is computed using the weighted-average number of common shares and vested , undelivered restricted stock awards outstanding during the period , plus the dilutive effect of potential future issuances of common stock relating to stock option programs and other potentially dilutive securities using the treasury stock method . in calculating diluted eps , the dilutive effect of stock options and restricted stock awards is computed using the average market price for the respective period . in addition , the assumed proceeds under the treasury stock method include the average unrecognized compensation expense and assumed tax benefit of stock options and restricted stock awards that are in-the-money . this results in the assumed buyback of additional shares , thereby reducing

cash flows replace_table_token_19_th 53 operating activities cash provided by operating activities primarily consists of net income adjusted for certain non-cash items including depreciation and amortization , the provision for bad debt , stock-based compensation , deferred income taxes , and the effect of changes in working capital and other activities . cash provided by operating activities for the year ended december 31 , 2015 was $ 11.3 million compared to $ 18.2 million and $ 8.3 million in the years ended december 31 , 2014 and 2013 , respectively . the decrease in cash provided by operations in fiscal 2015 compared to fiscal 2014 was primarily a result of changes in operating assets and liabilities of $ ( 7.5 ) million in 2015 compared to $ 0.8 million in 2014. significant components of the changes in assets and liabilities in 2015 included an increase in accounts receivable of $ 4.2 million , as evidenced by the increase in dso during the period , a $ 1.6 million decrease in income taxes payable , a $ 0.9 million decrease in accounts payable and a $ 1.0 million decrease in accrued compensation , primarily resulting from annual bonuses from 2014 that were paid in the first quarter of 2015. these changes were offset in part by an increase in accrued expenses of $ 1.8 million , primarily related to tax withholdings on net share settlements , and an increase in deferred revenue of $ 0.7 million . additionally , tax benefits relating to excess stock-based compensation deductions are presented as financing cash flows .


 Write a concise suspicious activity report of the following text delimited by triple backquotes. Return your response as a formal report which covers the key points highlighting the location,dates,entity names and account holder information in chronological order of the text.
     ```cash flows replace_table_token_19_th 53 operating activities cash provided by operating activities primarily consists of net income adjusted for certain non-cash items including depreciation and amortization , the provision for bad debt , stock-based compensation , deferred income taxes , and the effect of changes in working capital and other activities . cash provided by operating activities for the year ended december 31 , 2015 was $ 11.3 million compared to $ 18.2 million and $ 8.3 million in the years ended december 31 , 2014 and 2013 , respectively . the decrease in cash provided by operations in fiscal 2015 compared to fiscal 2014 was primarily a result of changes in operating assets and liabilities of $ ( 7.5 ) million in 2015 compared to $ 0.8 million in 2014. significant components of the changes in assets and liabilities in 2015 included an increase in accounts receivable of $ 4.2 million , as evidenced by the increase in dso during the period , a $ 1.6 million decrease in income taxes payable , a $ 0.9 million decrease in accounts payable and a $ 1.0 million decrease in accrued compensation , primarily resulting from annual bonuses from 2014 that were paid in the first quarter of 2015. these changes were offset in part by an increase in accrued expenses of $ 1.8 million , primarily related to tax withholdings on net share settlements , and an increase in deferred revenue of $ 0.7 million . additionally , tax benefits relating to excess stock-based compensation deductions are presented as financing cash flows .
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 Suspicious Activity Report : due to the impact of the strong u.s. dollar on foreign currency , our large multi-national customers , who generate a significant amount of their revenues outside the u.s. , continue to be cautious . in the year ended december 31 , 2015 , online revenues from our top 12 global customers , which have the most international exposure , decreased slightly compared to the same period a year ago . online revenues from our mid-sized customers ( our next largest 100 customers , who have less exposure internationally ) increased by approximately 15 % year over year . revenues attributable to our smaller customers , which tend to be venture capital-backed start-ups that primarily operate in north america , increased by approximately 21 % over the prior year period . all three customer segments continued to report a challenging environment , and this translated into our customers remaining cautious with their marketing expenditures . our key strategic initiatives include : geographic  during 2015 , approximately 33 % of our online revenues were derived from international campaigns . international online revenues ( which also includes it deal alert revenues of $ 3.8 million as discussed below ) increased by approximately 12 % in the year ended december 31 , 2015 as compared to the same period a year ago . we continue to execute very well internationally as we continue to deepen our relatively new relationships with our customers in the united kingdom , france , germany , australia , singapore , china and latin america . due to the impact of the strong u.s. dollar on foreign currency , however , our largest customers continue to be cautious . product  it deal alert revenues were approximately $ 23.2 million in the year ended december 31 , 2015 , up from approximately $ 16.8 million in the same period in 2014. this includes international it deal alert revenues of $ 3.8 million , which is also included in international revenues as discussed above . in the fourth quarter of 2015 , we had over 288 active customers utilizing our it deal alert products and services ; this is up from 260 customers in the third quarter of 2015. we expect it deal alert to continue to be a meaningful growth driver into 2016. sources of revenues we sell customized marketing programs to it vendors targeting a specific audience within a particular it sector or sub-sector . we maintain multiple points of contact with our customers to provide support throughout their organizations and their customers ' it sales cycles . as a result , our customers often run multiple advertising programs with us in order to target their desired audience of it professionals more effectively . there are multiple factors that can impact our customers ' advertising objectives and spending with us , including but not limited to , it product launches , increases or decreases to their advertising budgets , the timing of key industry marketing events , responses to competitor activities and efforts to address specific marketing objectives such as creating brand awareness or generating sales leads . our products and services are generally delivered under short-term contracts that run for the length of a given advertising program , typically less than six months . in the year ended december 31 , 2015 , demand generation and brand advertising remained our primary sources of revenue , while data analytics-driven intelligence solutions , driven by growth in our it deal alert products and services , contributed approximately 22 % of online revenue as compared with approximately 17 % for the same period in 2014 . 39 the majority of our revenues are derived from the delivery of our online offerings . online revenue represented 94 % , 92 % and 90 % of total revenues for the years ended december 31 , 2015 , 2014 and 2013 , respectively . we use online and a select number of face-to-face event offerings to provide it vendors with numerous touch points to identify , reach and influence key it decision makers . the following is a description of the products and services we offer : online offerings it deal alert . it deal alert is a suite of products and services for it vendors that leverages the detailed purchase intent data that we collect about end-user it organizations . through proprietary scoring methodologies , we use this data to help our customers identify and prioritize accounts whose content consumption around specific it topics indicates that they are in-market for a particular product or service . we also use the data directly to identify and further profile accounts ' upcoming purchase plans . it deal alert : qualified sales opportunities . qualified sales opportunities is a product that profiles specific in-progress purchase projects , including information on scope and purchase considerations , in over 100 technology-specific segments . it deal alert : priority engine . priority engine is a subscription service powered by our activity intelligence platform , which integrates with salesforce.com . the service delivers information to allow marketers and sales personnel to identify accounts actively researching new technology purchases , and to reach active prospects within those organizations that are relevant to the purchase . we sell this service in approximately 300 technology-specific segments . it deal alert : deal data . deal data is a customized solution aimed at sales intelligence and data scientist functions within our customers that makes our activity intelligence data directly consumable by the customer 's internal applications . it deal alert : techtarget research . techtarget research is a newly launched subscription product that sources proprietary information about purchase transactions from it professionals who are making and have recently completed these purchases . the offering provides data on market trends , pricing dynamics and vendor win/loss and displacement trends . core online . story_separator_special_tag we review our allowance for doubtful accounts on a regular basis , and all past due balances are reviewed individually for collectability . account balances are charged against the allowance after all means of collection have been exhausted and the potential for recovery is considered remote . provisions for doubtful accounts are recorded in general and administrative expense . if our historical collection experience does not reflect our future ability to collect outstanding accounts receivable , our future provision for doubtful accounts could be materially affected . to date , we have not incurred any write-offs of accounts receivable significantly different than the amounts reserved . the allowance for doubtful accounts was $ 1.7 million and $ 1.0 million at december 31 , 2015 and 2014 , respectively . 45 stock-based compensation we measure stock-based compensation at the grant date based on the fair value of the award and recognize stock-based compensation in our results of operations using the straight-line method over the vesting period of the award . we use the black-scholes option pricing model to determine the fair value of stock option awards . we calculated the fair values of the options granted using the following estimated weighted average assumptions : replace_table_token_9_th the expected volatility of options granted in 2015 , 2014 and 2013 was determined using a weighted average of the historical volatility of our stock for a period equal to the expected life of the option . the risk-free interest rate is based on a zero coupon u.s. treasury instrument whose term is consistent with the expected life of the stock options . we have not paid and do not anticipate paying cash dividends on our shares of common stock ; therefore , the expected dividend yield is assumed to be zero . we applied an estimated annual forfeiture rate in determining the expense recorded in each year . internal-use software and website development costs we capitalize costs of materials , consultants and compensation and related expenses of employees who devote time to the development of internal-use software and website applications and infrastructure involving developing software to operate our websites . however , we expense as incurred website development costs for new features and functionalities since it is not probable that they will result in additional functionality until they are both developed and tested with confirmation that they are more effective than the current set of features and functionalities on our websites . our judgment is required in determining the point at which various projects enter the state at which costs may be capitalized , in assessing the ongoing value of the capitalized costs and in determining the estimated useful lives over which the costs are amortized , which is generally three years . to the extent that we change the manner in which we develop and test new features and functionalities related to our websites , assess the ongoing value of capitalized assets or determine the estimated useful lives over which the costs are amortized , the amount of website development costs we capitalize and amortize in future periods would be impacted . we review capitalized internal-use software and website development costs for recoverability whenever events or changes in circumstances indicate that the carrying amount of the asset may not be recoverable . we would recognize an impairment loss only if the carrying amount of the asset is not recoverable and exceeds its fair value . we capitalized internal-use software and website development costs of $ 2.9 million , $ 3.0 million and $ 3.6 million for the years ended december 31 , 2015 , 2014 and 2013 , respectively . income taxes we are subject to income taxes in both the u.s. and foreign jurisdictions , and we use estimates in determining our provision for income taxes . we recognize deferred tax assets and liabilities based on temporary differences between the financial reporting and income tax bases of assets and liabilities using statutory rates . our deferred tax assets are comprised primarily of book to tax differences on stock-based compensation and timing of deductions for deferred rent , accrued expenses , depreciation and amortization . as of december 31 , 2015 , we had a california net operating loss ( nol ) carryforward acquired from bitpipe of approximately $ 0.2 million which expires in 2018. we also had foreign nol carryforwards of $ 1.4 million , which may be used to offset future taxable income in foreign jurisdictions until they expire , through 2020. the deferred tax assets related to the california and foreign nol carryforwards have been fully offset by a valuation allowance . 46 additionally , we have a $ 0.2 million federal nol carryforward that will expire in 2034. net income ( loss ) per share we calculate basic earnings per share ( eps ) by dividing earnings available to common shareholders for the period by the weighted average number of common shares and vested , undelivered restricted stock awards outstanding during the period . because the holders of unvested restricted stock awards do not have nonforfeitable rights to dividends or dividend equivalents , we do not consider these awards to be participating securities that should be included in our computation of earnings per share under the two-class method . diluted eps is computed using the weighted-average number of common shares and vested , undelivered restricted stock awards outstanding during the period , plus the dilutive effect of potential future issuances of common stock relating to stock option programs and other potentially dilutive securities using the treasury stock method . in calculating diluted eps , the dilutive effect of stock options and restricted stock awards is computed using the average market price for the respective period . in addition , the assumed proceeds under the treasury stock method include the average unrecognized compensation expense and assumed tax benefit of stock options and restricted stock awards that are in-the-money . this results in the assumed buyback of additional shares , thereby reducing

