BackType: A comment and reply aggregation service similar to Twitter.

BackType is a comment and reply (Comments) aggregation service that helps users aggregate and display their comments and replies from different blogs and websites. Similar to Twitter, users can follow each other and share each other's comments and replies.

Users simply need to add the URLs of the blogs and websites where they want to post comments to their BackType list. BackType also allows linking with a Twitter account so that updates on your comments and replies can be sent to your Twitter account. Additionally, it provides widget plugin codes.