Talk Digger
You talk, we dig!
Talk Digger is a service for subscribers to find Web conversations and discover interesting stuff, see relationships between conversations, browse the Web by tracing conversations, and to create awareness and monitor commentary about what is happening on their own Web sites. Talk Digger also can be used to set up new social networks and can be used as a "conversation" search engine. Besides conversations, threads can also be searched by user, tag, comment or URL.