http://meta.osqa.net/ is really good, and the fact that they allow OpenID, Yahoo, Google etc logins makes it even more suitable for the needs of this community. Thanks Mr Saidimu. By the way, with Stackoverflow and its brethren, you can choose to be notified by email when someone comments on a discussion in which you are a participant .. a lot like facebook or twitter. The advantage here is that you no longer have to be subjected to loong boring emails bashing OTs (which are of themselves quite OT) since the only subjects which will catch your attention are those in which you have an active interest in.

+10 too, for stackoverflow, osqa and their variants