I was having an email exchange with some folks about cocomment and I finally got around to signing up for an account. While I was tinkering around, I also ran into Commentosphere. Both sites are an attempt to syndicate everything you say everywhere. A neat idea in theory. I've been wanting something like this for a while. Often the comments I make elsewhere are related to things I'm discussing here and maybe people who visit here would be interested in those conversations as well. You can see an example of what cocomment does in my sidebar.
The sucky thing is that neither program works well with Haloscan. Sure, I can manually enter comments from Haloscan into Commentosphere, but I'm just not going to go to all that effort. It appears that Cocomment is working on this issue, so maybe this will work soon. And if any of you more techie people out there have any answers or workarounds, I'd love to hear them.