Enzyme is an architecture for creating user-searching-user applications. Right now, it is primarily useful as a resume create/search and HR management system. However, it's potential uses are wide-ranging, and it offers PHP developers an alternative to relying on simple "keyword" searching systems.
LogiTest is a Java application for functional and regression testing of Web sites. It currently supports GET and POST methods, HTTPS, cookies, browser history, XML formatted tests, simple Testlet API for writing new tests, user-defined HTTP headers and parameters, and regular expressions. Tests are recorded and played back through a easy-to-use GUI and can be stored and loaded from XML files.
Todolist.php is a set of PHP scripts that creates a Web-based list of things todo. Items can be added and removed, and are sorted by an assigned priority. It is also possible to assign special tasks to another person and to specify a due date. Tasks are organized in projects. Todolist.php supports several languages.
MenuWorkshop is an HTML menu generator. It can build 2-level menus with images in the background and a mouseover effect on each menu item. It is very easy to set up. The generated file is pure HTML4/XHTML and doesn't need any PHP preprocessing to be done on your final page once the menu is built.