Gluestick helps developers access the GetGlue API from Ruby and PHP code. It allows developers to use the API's native methods rather than learning new ones. Gluestick is available as a Ruby gem or a PHP library.
You may soon be able to "Digg This" from within your applications. The social news site's API (our Digg API profile) has long been able to list stories and other data. Now it's looking to let developers add content programmatically.
There are already millions of apps available that have great content, and there'll be many more to come. GROUPcentric provides a product that aims to add a new and exciting layer in social sharing functionality that allows content to be shared, not only via the large scale Facebook and Twitter options or email and SMS, but an in-application sharing service that makes it possible for users to privately share content with groups of friends that can be accessed on any app. The GROUPcentric API and SDK allow developers to integrate this functionality with other applications.