Nights in Buenos Aires

I recently read an interesting article in the New York Times ( http://travel.nytimes.com/2008/03/16/travel/16buenos.html ) about a new wave of exciting evening offerings in Buenos Aires for the mature and arts-inclined, some of which may be of special interest to travelers who enjoy music, dance and the arts generally. One link from the article stands out in particular - if you have a few nights free in BA and want to hit the town for some dancing or live fare, check out this site:
http://whatsupbuenosaires.com/wuba2/?&ln=en&ln=en