OSIC: Open Searchable Image Catalogue

OSIC is an open-source application for "storing large numbers of image files with associated metadata," written in PHP. This application looks pretty good: it supports mutliple collections, it has hierarchical cateogry browsing, and the search results list is clean and intuitive (although it appears the only feature the advanced search adds is to allow the user to limit by date). OSIC also includes a nice Java file upload applet that is much more functional than standard HTML-based file upload tools. OSIC also generates its own thumbnails from the uploaded images. Even though the default metadata fields are fairly limited (description, notes, date created, source, and category), you can add your own simple custom fields.