Shantaram - Gregory David Roberts
Roberts' beautifully-designed website. Features many useful links to information about Roberts and his novel. The first (and perhaps last) necessary stop in pursuing further research.
Gregory David Roberts at IMDb
http://www.imdb.com/name/nm1743460/
Roberts' information page on the Internet Movie Database.
Interview with Gregory David Roberts
http://www.youtube.com/watch?v=wGL5eTU5DXA
A revealing look at the man behind the novel.