The OWASP O2 Platform is an OWASP Project which is a collection of Open Source modules that help Web Application Security Professionals to maximize their efforts and quickly obtain high visibility into an application's security profile. The objective is to 'Automate Application Security Knowledge and Workflows"

The main O2 website (with documentation and videos) is at http://www.o2platform.com and the O2 pages at the OWASP website are at: http://www.owasp.org/index.php/OWASP_O2_Platform.

The O2's Scripting environment is built of top of the FluidSharp APIs (also part of O2). For more details see http://fluentsharp.codeplex.com/

There are tons of O2 Related Blog Posts at: http://blog.diniscruz.com/search/label/O2%20Platform

The main downloads are at https://code.google.com/p/o2platform/downloads/list

The source code is at GitHub: https://github.com/o2platform