One of the best collections I’ve seen on flickr about infographics is the following:
http://www.flickr.com/photos/cooljerk/
“…Portfolio of some of my favorite works from my tenure as Lead Infographics Journalist at The San Diego Union-Tribune (1994-2006)…”, seems that this guy is a quite interesting source 🙂
http://www.flickr.com/photos/cooljerk/sets/72157594243078359/
and some more …