Disaggregation of Revenue We generate revenue from the sale of services and sale of software fees for end-user software products provided through direct customer downloads and through the sale of these end-user software products via partners. The following table depicts the disaggregation of revenue (in thousands) according to revenue type and is consistent with how we evaluate our financial performance: Three Months Ended March 31, Revenue from Contracts with Customers: 2020 2019 Services $ 11,511 $ 16,864 Software and other 438 1,200 Total revenue $ 11,949 $ 18,064 Services Revenue Services revenue is comprised primarily of fees for technology support services. Our service programs are designed for both the consumer and SMB markets, and include computer and mobile device set-up, security and support, virus and malware removal and wireless network set-up, and automation system onboarding and support. We offer technology services to consumers and SMBs, primarily through our partners (which include communications providers, retailers, technology companies and others) and to a lesser degree directly through our website at www.support.com. We transact with customers via reseller programs, referral programs and direct transactions. In reseller programs, the partner generally executes the financial transactions with the customer and pays a fee to us which we recognize as revenue when the service is delivered. In referral programs, we transact with the customer directly and pay a referral fee to the referring party. Referral fees are generally expensed in the period in which revenues are recognized. In such referral programs, since we are the primary obligor and bear substantially all risks associated with the transaction, we record the gross amount of revenue. In direct transactions, we sell directly to the customer at the retail price. The technology services described above include four types of offerings:  Hourly-Based Services - In connection with the provisions of certain services programs, fees are calculated based on contracted hourly rates with partners. For these programs, we recognize revenue as services are performed, based on billable hours of work delivered by our technology specialists. These services programs also include performance standards, which may result in incentives or penalties, which are recognized as earned or incurred.  Subscriptions - Customers purchase subscriptions or service plans under which certain services are provided over a fixed subscription period. Revenues for subscriptions are recognized ratably over the respective subscription periods.  Incident-Based Services - Customers purchase a discrete, one-time service. Revenue recognition occurs at the time of service delivery. Fees paid for services sold but not yet delivered are recorded as deferred revenue and recognized at the time of service delivery. The following table represent deferred revenue activity for the three months ended March 31, 2020 and 2019 (in thousands): March 31, 2020 March 31, 2019 Deferred revenue - beginning of period $ 1,193 1,135 Deferred revenue 403 751 Recognition of unearned revenue (459 ) (571 ) Deferred revenue - end of period $ 1,137 $ 1,315 Partners are generally invoiced monthly. Fees from customers via referral programs and direct transactions are generally paid with a credit card at the time of sale. Revenue is recognized net of any applicable sales tax. Services revenue also includes fees from licensing of Support.com cloud-based software. In such arrangements, customers receive a right to use our Support.com Cloud applications in their own support organizations. We license our cloud based software using a software-as-a-service (SaaS) model under which customers cannot take possession of the technology and pay us on a per-user or usage basis during the term of the arrangement. In addition, services revenue includes fees from implementation services of our cloud-based software. Currently, revenues from implementation services are recognized ratably over the customer life which is estimated as the term of the arrangement once the Support.com Cloud services are made available to customers. We generally charge for these services on a time and material basis. As of March 31, 2020, revenues from implementation services are di minimus. Software and Other Revenue Software and other revenue is comprised primarily of fees for end-user software products provided through direct customer downloads and through the sale of these end-user software products via partners. Our software is sold to customers as a perpetual license or as a fixed period subscription. We offer when-and-if-available software upgrades to our end-user products. Management has determined that these upgrades are not distinct, as the upgrades are an input into a combined output. In addition, Management has determined that the frequency and timing of the when-and-if-available upgrades are unpredictable and therefore we recognize revenue consistent with the sale of the perpetual license or subscription. We generally control fulfillment, pricing, product requirements, and collection risk and therefore we record the gross amount of revenue. We provide a 30-day money back guarantee for the majority of our end-user software products. For certain end-user software products, we sell perpetual licenses. We provide a limited amount of free technical support to customers. Since the cost of providing this free technical support is insignificant and free product enhancements are minimal and infrequent, we do not defer the recognition of revenue associated with sales of these products. For certain of our end-user software products (principally SUPERAntiSpyware), we sell licenses for a fixed subscription period. We provide regular, significant updates over the subscription period and therefore recognize revenue for these products ratably over the subscription period. Other revenue consists primarily of revenue generated through partners advertising to our customer base in various forms, including toolbar advertising, email marketing, and free trial offers. We recognize other revenue in the period in which control transfers to our partners.