FranticFish - 11:17 am on May 18, 2011 (gmt 0)

I've tried this extensively when working on one site a while back. Maybe it was the niche, because the webmasters were a bunch of ungrateful b*st*rds and although a fair few thanked me, not one added my link (to a website run by a complete 'god' in that niche and household name to boot). I'll try it again, but was very disappointed by the response.