The Dailymile Ruby SDK by Dailymile supports most points in the API, allowing developers to integrate fitness tracking features into social applications. Resources available to authenticate with OAuth and interact with REST protocols.
For the past few months, the API of microblog site Twitter has been used as the basis for many popular and creative mashups. Now Facebook, with the launch of its highly anticipated Open Stream API, is attempting to gain some attention as a platform for social networking applications.
Popular image-sharing application mlkshk now has a mlkshk API for building mlkshk-enabled applications. The service provides a social image discovery and sharing technology, with a RESTful API allowing access to a user's mlkshk account, friends, favorites, and personal image collections also known as "shakes."
Hootsuite, one of the most popular Twitter clients of all time, announced last week it raised $165 million in a round of Series B funding. The round was led by Insight Venture Partners with participation from Accel Partners and existing investor, OMERS Ventures.