The Live Discussions module creates a block listing recently commented upon threads. The number of nodes listed in the block is configurable (5, 10, 15, 20, 25 or 30 nodes). The link can display the number of comments made on the node and the block title is configurable. As of November 2, 2006 the module also provides a page for logged in users to track discussion sitewide.
This is different than the block provided in the core distribution because it lists nodes with comments rather than comments.
The page is similar to the one at http://drupal.org/tracker but it only lists nodes with comments the user has not read. The discovery is limited to one month. This functionality was sponsored by FreeSoftware Magazine (http://www.freesoftwaremagazine.com/).