The Facebook SDK for PHP enables developers to access the Facebook Graph API and use the Facebook Login from within PHP applications. Examples are provided that show how to use the SDK to retrieve a user's profile, post a link to a user's feed, and upload a photo to a user's profile.
Stack Overflow, the innovative and popular programming question and answer service, is planning to open an API. In keeping with their community-centric approach, they are asking developers for input on what features should be included in their API.
Twitter photo sharing service TweetPhoto is encouraging developers to use its platform by giving them a way to earn some money. The service pays developers by the number of photos that its users upload via the TweetPhoto API.