...VIAIMAGE will allow for quick customization for clients and developers. VIAIMAGE uses any image type and can use most other file types. Currently VIAIMAGE runs on GNU/Linux w/ MySQL and PHP as the backend/front
RivetTracker is a modified version of PHPBTTracker. Written in PHP, this BitTorrent tracker uses MySQL as the database backend. It provides an RSS feed, optional support for HTTP seeding, detailed connection statistics, easy installation, and much more.
...You don't have to open phpmyadmin! There are plenty of ad spots so you can actually generate revenue from your free file sharing website. The backend has a really cool Bootstrap interface but is pretty basic. More Information: http://facebook.com/RandelDigital
This Project shows how to create a mobile smartphone app with a gnutella p2p application.
It consits of smartphone java sourcecode, documentation, phex source code, phex proxy and instructions to create a working app.
This project once was coded with only 2000€ buget and has given revenue of over 30.000€. Happy hacking the java,perl,php code.
Other...
DMSEasy is a web-based Document Management System (DMS) written in PHP5 with MySQL backend for enterprise use . it enable you build documents like chm online, and share documents in a file repository with your workmates very easy.
This intended to be a fast local network(ftp/smb) file indexer and searcher. It's daemon is written in C#, it will have a GUI client, WEB interface for integration into networks' sites and using PgSQL as backend
Xbits, is a Php/Mysql Bittorrent Tracker Portal, witch supports XBTT if you wanted to use that as a tracker backend. It Will include an Admin Control panel, User Control Panel, News System and much much more!!