Argentina CIA Factbook
US State Dept
Wikitravel Argentina

We were in Buenos Aries in February 2008. We spent one night and walked around the central area of town. We also saw the La Boca section and danced a little in the street.

We have a travel log of the trip in 2008. And some photos. Additional photos on flickr.

Information I have found
www.allaboutar.com
www.buquebus.com the ferry