To add your app to Orkut's application directory, submit this form.
Orkut Developer's Guide — Get information and code specific to Orkut's implementation of OpenSocial.
OpenSocial API Reference — Online docs for all the JavaScript calls you can make in your app.
Orkut developer forum — Got a question? Find an answer in the discussion group.
Issue Tracker — A public repository of bugs and feature requests.
As a developer, you'll soon be able to create social applications for the millions of global Orkut users. Orkut now supports OpenSocial, a common set of APIs, HTML, and JavaScript designed to let developers easily build social applications.
We've opened a limited sandbox that you can use to start building apps and testing the APIs. Right now, the social apps are just available for developers in the Orkut sandbox. We'll be adding developers to the sandbox on an ongoing basis, so sign up today. Once you receive a confirmation email, work your way through the OpenSocial Tutorial to develop your first OpenSocial application for Orkut.
Here are a few of the things you can do with social applications on Orkut: