PostNuke is a Weblog/portal system featuring an extremely easy-to-use Web-based installation script. It is extremely developer and community friendly, with active development progressing, support forums around the world, and live support via its own IRC network. It was originally based on PHP-Nuke, but was rewritten with security and performance in mind.
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.
refbase is a Web-based bibliographic manager that can import and export references in various formats (including BibTeX, Endnote, ISI, RIS, PubMed, MODS XML, OpenOffice, and Word 2007 XML). It can make formatted lists of citations in HTML, RTF, PDF, or LaTeX, and offers powerful searching and RSS support. Its OpenSearch and SRU/W services and support for unAPI and COinS metadata allow for easy access by clients and search engines.
GPS Tracker allows someone to track a GPS enabled cell phone using Google Maps. The project was tested with a Motorola i355 cell phone on the Sprint/Nextel network. You need to have a data plan with the cell phone provider so that you can make updates to your Web site from the cell phone. There are two projects available. The first project is built with PHP and MySQL. The second project is built with .NET and Microsoft SQL Server. Both projects use Java (J2ME) on the cell phone.
Babase is a baboon data management system. It is designed to facilitate the retrieval, storage, maintenance, and analysis of the following broad data categories: group membership, social status (dominance rank), life events, sexual cycle events (including progeny), sexual cycle day-to-day status, dyadic social interactions, focal animal samples, and multi-party social interactions. Integration of other data is supported. Babase is designed for Web access.