good dating sites

What are some good dating sites for people in their 20s?

My 22-year-old friend is extremely shy, but he really wants to get into the dating scene. I think online dating would be a good place for him, because he opens up once he gets to know people better. But, what dating sites are more focused on young people, and are actually good? Thanks!

I met my boyfriend on http://wwwsinglesnet.info
It took about a month, and he showed interest in me. I registered for a lot of different ones, and didn’t like most. This one is the best so far, and the best thing is it is free!

Which dating site to choose?