Most online dating sites are targeted at adults. However many teen chat sites have "dating" chat areas. Here are a few such sites. http://www.teensay.com/ http://www.teenchat.com/ http://www.chat-avenue.com/
E Harmony is rated as one of the best pay dating sites on the Internet.
I would assume that a black date site is going to be an online dating site for black people. meetblackpeople.com is a great website for those who are looking for dating or even just friendship.
A really popular site used by teenagers is MySpace, a social networking website.
The best site is www.XMsims.com
I think the best online dating site in Moldova is MoldovaBestOf
The best ranked dating website is matched.com based upon consumers' reviews. The second best ranked dating website, the best advertised one, is eHarmony.com.
I Googled "Teen Dating" "Online Teen Dating" :Dating For Teens" Mylol.net looks like a really cool one.I also found these... Espin.com and OurTeenNetwork.com are the one you can check oualsot. Mavenrestin.com and Trevorspace.com are the only sites for teen dating.
There are a few medical professional dating sites The best dating site to try would be eHarmony.
The best online dating site for a mature gay man is Match or Zoosk.
omegle.com
badoo.com
There are many dating sites out there. Here is a top comparison of the best online dating sites to use: dating.about.com/od/site reviews/TP/OnlineSites.htm