If you're looking for an alternative address book for your Mac, you should take a closer look at Cobook. It's been featured by Lifehacker, TechCrunch and most recently Swiss Miss. It's defining features are its simple UI, intelligent search and social network integration which updates your contacts using information from Facebook, Twitter, and LinkedIn.

The app is available for free from Cobook's website. You can also check out the promotional video below.

[Via Swiss Miss]