Pluribus is a free search engine that learns to improve the quality of its results over time. Pluribus works by recording which pages a user prefers among those returned for a query. Uses PHP and MySQL . Online shopping cart system. Pages are dynamically generated through a php3 interface to the database content.
Users contribute images and descriptions.
Contributed images are stored on the web server to avoid storing them in the database as BLOBs. All other information is stored on the shared MySQL server.