Here's proof we're reaching a new level of shallowness.The PsyBlog site gives a 7-point primer on the psychology of facebook (how to attract more Facebook friends). Point number 2:
"Court attractive friends
Make sure your friends, or the people who post on your 'wall', are good-looking. Walther et al. (2008) found that attractive friends boosted the perceived attractiveness of participant's profiles.
Keep the uggos away, unlike the offline world, it won't make you look better in comparison."
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Sorry, Stephen Hawking, I have to take you off my friends list...