Male
1. YouTube
2. Facebook
3. Google
4. Yahoo!
5. ESPN
6. AddictingGames
7. MySpace
8. MiniClip
9. IGN
10. NFL
Female
1. Facebook
2. Google
3. YouTube
4. MySpace
5. Yahoo!
6. AOL
7. PerezHilton.com
8. MSN
9. Amazon
10. TMZ
Source: eMarketer
http://www.emarketer.com/Article.aspx?id=1006736
1. YouTube
2. Facebook
3. Google
4. Yahoo!
5. ESPN
6. AddictingGames
7. MySpace
8. MiniClip
9. IGN
10. NFL
Female
1. Facebook
2. Google
3. YouTube
4. MySpace
5. Yahoo!
6. AOL
7. PerezHilton.com
8. MSN
9. Amazon
10. TMZ
Source: eMarketer
http://www.emarketer.com/Article.aspx?id=1006736