Backtype is a new web service that just launched that helps you track and search your friends comments from multiple sources. You can also claim accounts associated with your domains. TechCrunch is referring to it as the “Twitter For Comments”.
BackType is a service that lets you find, follow and share comments from across the web. Whenever you write a comment with a link to your website, BackType attributes it to you. We give comment authors a profile featuring all the comments they’ve written on the Internet.
Here’s the Laughing Squid account on Backtype.