wURLdBook's mission is to help people stay connected to information on the Web. wURLdBook is a free web based information aggregator. wURLdBook offers you a new way to unobtrusively navigate, collect, categorize, annotate, clip, archive, find, publish RSS (including enclosures) and share information with others that is important to you on the web.

Linkroll is a free link blogging service.

At a personal level you can bookmark, categorize and comment on all the great web pages/links you find. All your bookmarks are then sortable and searchable by category and date. All bookmarks are also accessible, by category and/or user, in the form of RSS feed (for your news aggregator), or JavaScript (for syndication on your own web site)

It works on a group level by enabling you to browse other user's bookmarks, and subscribe to users and link c ...