uLinkx can best be explained as a web based media bookmarking tool for organizing all your favorite Videos and Music. It’s the hub of all media related activities like dynamic searching of videos and music, tagging and bookmarking them and finally sharing them with other users.
uLinkx provides web based bookmarking facility to the users. The [...]

blueorganizer is a Firefox extension that allows you to easily collect and manage your favorite things like books, music and movies. [...]

Previously mentioned goowy has been updated with new features. Well if you don't know yet what goowy is all about then here it is -
What is Goowy?

Manage your personal communications including advanced email, contacts, calendar, and integrated instant messaging (Just Released 2GB for free) all from one place anytime, anywhere.
Organize your digital content [...]