BAExpats is a community site of of expatriates living in Buenos Aires
Internations Argentina is a free membership-only site exploring expatriate life in Argentina, and includes forums, guide, and many groups.
Justlanded provides forums, guides, job postings, housing, and classifieds for expatriates in Argentina.
LandingPadBA is a site for both expatriates and novice travelers. It is an "alternative guide" to living and visiting Buenos Aires—providing many useful resources and helpful articles.
Lonely Planet Argentina by Danny Palmerlee, Sandra Bao, Andrew Dean Nystrom, and Thomas Kohnstamm
The Rough Guide to Argentina by by Shafik Meghji (Author), Stephen Keeling
Footprint Argentina by Christabelle Dilks
Moon Patagonia by Wayne Bernhardson