Facebook Connect is a new application of the Facebook Platform which allows users to seamlessly integrate their Facebook data into their own site. Users are able to connect their Facebook profile with any partner website. This gives your website a new level of dynamic social context because you are able to link your Facebook friends and publish information back into the News Feeds on Facebook. Facebook Connect further socializes and integrates the Web as facebook Founder, Mark Zuckerburg points out at the F8 Conference this year.

So, What's the big deal?  For marketers, the launch of Facebook Connect, and other Open identity programs from Google friend Connect and MySpaceID, marks an advancement in social advertising.

By applying a small piece of code, Facebook Connect enables seamless integration with the Facebook platform.  For example, a visitor would login to a "connected" blog with their Facebook ID, which would  enable their profile to appear on the blog and link commenting back into their Facebook activity feed.

As more sites integrate with Facebook Connect and other services, advertisers will be able to have broader ad-targeting capabilities.  While other ad platforms provide behavioral and demographic targeting, none of them provide a self-service solution that can be managed and controlled in a similar to Google Adwords

Current Facebook partners include Amiando, CBS.com, CitySearch, CNET, CollegeHumor, Disney-ABC, Evite, Flock, Hulu, Kongregate, Loopt, Plaxo, Radar, Red Bull, Seesmic, Socialthing!, StumbleUpon, The Insider, Twitter, Uber, Vimeo and Xobni.

For more information, Check out Facebook developers demonstrating how to add facebook connect to your blog in 8 minutes.