Abstract: Techniques are described for facilitating performance of tasks involving human review of media data (e.g., images, audio clips, video clips, etc.), such as to identify one or more targets of interest. The media data review may be performed for various reasons, such as to assist in locating one or more target objects in a large geographical area (e.g., one or more missing people or vehicles) based on human review of large quantities of images that each correspond to a small subset of the geographical area. When one or more of the reviewed media data pieces are identified as being relevant, information about those identified media data pieces may be used in various ways. Furthermore, in at least some situations, the media data review may be part of a charitable effort that uses human volunteers to review the media data without monetary payment or other compensation.

Abstract: An online electronic wallet system and method provide secure storage and transmission of payment instrument information for use in completing online purchases initiated from a client device. A payment instrument's verification code is stored in an encrypted form in local storage on a client device and retrieved and re-encrypted along with other payment instrument information stored on the system using a merchant-specific key. An API library is used to integrate the online electronic wallet system with a registered merchant's purchase flow, including the ability to ensure receipt of an electronic receipt prior to communicating payment instrument information to a merchant server.

Abstract: Activation of a link or control button on a user interface before an underlying application status is known. A user requests access to a merchant system's webpage. The merchant system webpage loads and a link is activated. The merchant system begins to determine the user's account status with the remote system while the web page is loading or at any time thereafter. The user initiates a request by clicking, pressing, or otherwise selecting the link on the merchant system's webpage. The merchant system determines whether the user's account status with the remote system is known. If the account status is not known, the merchant system completes the determination. If the account status is known, the merchant system determines whether the action request is available. If the action is available, the request is processed. If the action is not available, the user is notified and the link is disabled.

Abstract: An online electronic wallet system and method provide secure storage and transmission of payment instrument information for use in completing online purchases initiated from a client device. A payment instrument's verification code is stored in an encrypted form in local storage on a client device and retrieved and re-encrypted along with other payment instrument information stored on the system using a merchant-specific key. An API library is used to integrate the online electronic wallet system with a registered merchant's purchase flow, including the ability to ensure receipt of an electronic receipt prior to communicating payment instrument information to a merchant server.

Abstract: An online electronic wallet system and method provide secure storage and transmission of payment instrument information for use in completing online purchases initiated from a client device. A payment instrument's verification code is stored in an encrypted form in local storage on a client device and retrieved and re-encrypted along with other payment instrument information stored on the system using a merchant-specific key. An API library is used to integrate the online electronic wallet system with a registered merchant's purchase flow, including the ability to ensure receipt of an electronic receipt prior to communicating payment instrument information to a merchant server.