Thunderbird is a total redesign of the Mozilla mail component to produce a cross-platform, stand-alone mail application using the XUL user interface language. It has many new features, among them the ability to customize your toolbars the way you want them. a new look and feel with a large number of downloadable themes which alter the appearance of the client, and the ability to add UI extensions.
Ownyx is a lightweight MVC PHP framework for developing Web sites and Web applications. It is implemented using an object-oriented approach and offers the basics needed for building Web projects. It is easy to use and comes with clear documentation, tutorials, and examples. It also provides a developer toolbar for monitoring and debugging projects in real-time and a query builder that lets you rapidly build MySQL queries and retrieve results in data objects.
LampCMS is a Q&A Web site with best features of StackOverflow and Quora mashed together. It integrates with Twitter, Facebook, Tumblr, and the Blogger API, and can post questions and answers to all of these APIs. It is very fast and can handle millions of monthly visitors on a single inexpensive server.