Typepad Connect looks useful

Says on the site that you can “turn your audience into a lively community with a suite of powerful commenting and community tools” which looks useful.

  • Make your blog the center of discussion.
  • Track and manage comments with ease.
  • Create a lively community with reader profiles.
  • Free and compatible with Movable Type, WordPress.org, Blogger, Tumblr, TypePad.

More here to chew on if that wets your appetite