www.badoo.com

Badoo is a social network which focus its attention on entertaining its visitors. For example, the user can vote photos from other visitors as well that he or she receives votes. If the user accumulates many votes, he or she will have much popularity and this will raise the number of friends of the person.
Badoo receives millions of visits per day and there are many users from America and Europe, so there is no problem to find new friends