FBConnect for Comments
***** Note : Safari users will see an error. You need to change your cookie security settings in preferences to 'Always Accept'. It's a known bug Disqus are working to fix *******
if you run a blog and don't use Disqus for your comments you are seriously missing out.
Facebook Connect is the "killer app" that we will see spread through sites in 2009 like wildfire. It also strengthens Facebook as "the" social network.