Picture imperfect
http://www.isthisyou.co.uk
Like all good 'comedy' websites isthisyou is an example of a simple idea done well. Like an online lost and found for passport pictures, it's a database of random people and pictures. There's something undeniably appealing – and funny – about the anonymous mugshots.

If the wind changes
http://www.mingers.com
Well-known but well worth the visit, 'the home of the facially inept' is chock-full of people so ugly they make grown men weep (with laughter). Your monitor may crack due to the complete, absolute, comprehensive, hideousness of some of these people.