Syndication across many channels is essential to success in the Web 2.0 landscape. Often the problem is keeping track of your content, where it resides and how its performing.
Traackr (not the same as Trackur,
reviewed earlier) does just that.

With Traackr, you can set up an account to monitor your media offerings across different sites and get feedback as to how much its being accessed and a buzz rating - whether that content is growing in popularity or fading, even compare your success with others. Create campaigns filled with assets (a piece of content) and follow the progression. You can track material on YouTube, MySpace, Flickr, Revver and others.
It's a nice, effective way to see how your marketing efforts are going with these sites - rather than needing to log in to each one of them every time you want to take a look.