A good (but rambling) discussion cropped up on
soc.genealogy.computing – a usenet group devoted to computers and genealogy (usenet is not moderated, so you might see some harsh language and off-topic posts). This is off of Google’s usenet servers.
Linkpendium
Speaking of usenet, I came across a thread discussing, Linkpendium.com, a site that claims they have over two million genealogy links (yes, I said two million).