On Saturday 1/17/09 at 8PM ET Twitter Taste LIVE (TTL) will hold their first beer event. The subject of the tasting is Introduction to Trappist Ales featuring Chimay Red, Chimay Tripel, Westmalle Dubbel, and Westmalle Tripel.
I couldn’t find much info. on the TTL site about the format, but it looks like you buy the aforementioned beers and someone will guide the tasting via Twitter updates which will show up on the event page. You can use their web interface to sign in to Twitter to post during the tasting and it will append your tweets with the #ttl hashtag. You could also just use your normal Twitter client and put the #ttl hashtag in there.