Like social boomarking, allows users to share their bookmarks online. Like wiki, anyone can freely edit links. Export / Import boomarks with your browser. Many other features: RSS and Atom feeds, URL check, popular categories, XLIink, ...
A PHP photo album storing all the non-graphic data in MySQL. You can write and display comments on pictures in multi languages. Exporia's directory structure is streight-forward and it works with PHP's safe mode.
JMdRdf is the tool which creates RDF/RSS. 1.You can generate RDF/RSS about your homepage from your HTML(s) without programming. JMdRdf extract Information such as title, description, etc automatically from HTML. 2.You can paste RDF/RSS into your HTML
NeuroGrid could be thought of as a "Napster for Bookmarks." It allows the user to store data in a web-like fashion, allowing you to associate bookmarks (files/documents/whatever) with multiple keywords. See http://www.neurogrid.net
RIG is a web-based JPEG image album viewer, especially useful for digital camera albums; provides automatic image resizing, preview & thumbnail caching, user authentication; composed of a PHP web interface and a C++ thumbnail engine.