pegboard is a social bookmarking service that lets you save, search, share and tag your bookmarks with people all over the world!
The simile toolset has a widget for building timelines. Demonstration timeline is an JFK's assassination.
compression, haberdasher, business, gnip, google, linkedin, supreme court, communication, how-to, advertising, open source, calendar, how-to, osx, weblog, code, webm, facebook, development, 2010 elections, api, football, blog, hack, feedback, textmate, forex system, proteins, mass email, economics, fonts, derby, blog, lawyers, academic, itunes, blog, fonts, microcontent, iphone, business, php, visual communication, nevada, language, open, font-face, jquery, browsers, com530