Revenue recognition   We derive revenue from the sale of virtual goods to MyGO Gamers   individuals who play our online or mobile games - and from the sale of advertising within our online and mobile games to our brand-partners   companies who seek to have their products featured in online and mobile games. Online and Mobile Games Currently, we operate half of our games as live services that allow MyGO Gamers to initially download the game and play the game for free. Within these games, MyGO Gamers can purchase virtual currency to obtain virtual goods to enhance their game-playing experience. Primarily, MyGO Gamers pay for our virtual currency   GO Bucks   using payment methods such as credit cards or PayPal. The other half of our games are available for download for approximately $1.00. Revenue from payments for initial download is recognized as though the game is a durable good (discussed below). We recognize revenue when all of the following conditions are satisfied: (1) there is persuasive evidence of an arrangement; (2) the service has been provided to the MyGO Gamer; (3) the collection of our fees is reasonably assured; and (4) the amount of fees to be paid by the customer is fixed or determinable. For purposes of determining when the service has been provided to the MyGO Gamer, we have determined that an implied obligation exists to the paying MyGO Gamer to continue displaying the purchased virtual goods within the online game over their estimated life or until they are consumed. The proceeds from the sales of virtual goods are initially recorded in deferred revenue. We categorize our virtual goods as either consumable or durable. Consumable virtual goods, such as energy or ammo, represent goods that can be consumed by a specific MyGO Gamer action. Common characteristics of consumable goods may include virtual goods that are no longer displayed on the MyGO Gamer s game board after a short period of time, do not provide the MyGO Gamer any continuing benefit following consumption or often times enable a MyGO