Dave Winer uses it. Fred Wilson uses it. Russell Beattie uses it. Steven Hodson uses it.
What is it? Disqus.
I have an interview/demo with Disqus’ CEO that explains why lots of top bloggers are switching their comment system to Disqus.
I really wish I could use Disqus on my blog, but it doesn’t work with WordPress.com. Matt Mullenweg and Toni Schneider, any way we can get this added?