The Playtomic iOS SDK by Playtomic interacts with the API to access video game features that developers can integrate into Apple mobile devices. Activity stream, laderboards, and level sharing are some of the resources available on the site.
Topsy, the Twitter search indexer that recently raised another $15 million, now lets users zero in on tweets mentioning videos. According to Topsy, the trending videos are the "most popular videos shared by influential users within the first 24 hours of their release." The feature is also available in its Topsy API, though currently undocumented.