The premise of Ping.fm is that “Ping.fm is a simple service that makes updating your social networks a snap.”
Exactly what I need. Once you create your free account at Ping.fm, the dashboard allows you to add a number of social networks like Facebook, Twitter, LinkedIn, Plaxo, Flickr, and lots more. That means that you update from one spot, and the update gets pushed to the rest of those services automatically. Pretty neat stuff.