Gmail, the web-based email service owned by Google, offers a library in Java language for Android development. The overview contains how to create and send e-mail, how to manage mailboxes, how to authorize API requests, and how to migrate from a previous API. Best practices guide users through batch requests and performance tips.
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.