The GroupDocs Java Sample Code by Pavel-Teplitsky presents API interactivity, by providing annotations and viewer. GroupDocs allows to integrate document collaboration with viewer and signature features.
Online diagramming service Creately opened its Creately API to the public this month, and with some surprisingly innovative features. While providing obvious features to make its service available to outside developers, and several "above and beyond" features, such as easy embedding of diagrams, Creately has done something fairly unique: open up its own, web-based file format for other developers to use.
GitHub has announced that its Developer Program is now open to all developers regardless of whether they have a paid or free GitHub account. GitHub has also now divided its Developer Program into three participation levels with each level providing an increasing number of benefits.
Twilio recently announced a developer preview for its new Twilio Sync offering. Twilio Sync maintains a single state synchronization infrastructure in the cloud that third party developers can utilize to introduce real-time synching and collaboration functionality into their apps.