Time's top 50 websites: How many do you know?

Weebly is ranked the highest, but how many of Time's top 50 are you familiar with? http://www.time.com/time/specials/2007/article/0,28804,1633488_1639316,00.html http://www.time.com/time/specials/2007/article/0,28804,16334...