an web application which supports online code reviewing. CVS, Subversion, Clearcase, Perforce, Visual SourceSafe and Bugzilla. There is a plug-in architecture for supporting other SCMs and issue tracking systems.
a URL based identity system. An OpenID identity is simply a URL, and all the OpenID specification does is provide a way to securely prove that you own that ID on that URL. Unlike most identity systems, OpenID is completely decentralized.
Sajax is an open source tool to make programming websites using the Ajax framework — also known as XMLHTTPRequest or remote scripting — as easy as possible. Sajax makes it easy to call PHP, Perl or Python functions from your webpages via JavaScript without performing a browser refresh. The toolkit does 99% of the work for you so you have no excuse to not use it.