I recently found this site by chance, and don't see any links to it elsewhere on the forum, so I figured I'd share. There are a lot of Before/After type images, as well as some other stuff if you're patient enough to browse through all the posts there. The attached image was also on the site...somewhere. I can't find it easily again, so I just put it here.
Main Page:
http://okashi.blog6.fc2.com/
Collected Before/After Images Post:
http://okashi.blog6.fc2.com/blog-entry-3753.html