Library Wishlist

Basically, I want something more advanced and somewhat more structured than delicious (with a strong focus on group collaboration) but less ridged and for a wider media scope than an academic citation tool (like CiteULike).

Here are my desired features:

• Collaborative, multi-user
• Automatic tagging (keyword extraction)
• Plug-in architecture (or easy to change base coding, e.g. open-source)
• Distributed login (OpenID or connects with an existing user DB, such as Wordpress)
• Multimedia (web pages, video, audio, presentations, books, scholarly publications, etc)
• Can handle uploads, primarily text documents (PDFs, DOC, XLS, etc, but possibly also video/images)
• Some set fields/tag types (author, language, media type, etc)
• Statistics (views, click-throughs, etc)
• Comment on entries
• API