I found a series of articles that make up the working draft of Nathan Gill's graduate thesis on South American Political Integration in the 21st Century. If you're interested in South American integration you can't miss the series of posts from March 26th (UNASUL: Problematizing Regional Integration) to March 31 (Historiography: Brazilian Hegemony) on http://www.southernaffairs.org/

Way to goo Nathan, great work!