Having said that, I've found a larger-than-average number of folks looking only for something casual here (likely due to the lack of time investment needed to join), and I've yet to hear of any successful relationships come out of the site (where readers tell me they've met The One, or something equally special, on the site).
While owner Markus Frind has wiped the site of folks only looking for casual dating or an age-gap relationship, I've found this has only increased the incidence of folks lying about their age or intentions.
All of the dating sites listed provide users with up to date capabilities, this could include instant messaging with video, etc.
Cost may be an issue for some teenagers as these dating sites have monthly fees for their members.
Registration is free, and once you register, you can find people in your state, city, country; or, if you're looking for someone the same age or affiliation are you, Plentyof Fish makes that possible as well.
At the time of this writing, there were over three million registered users on Po F, making it one of the largest dating sites on the Web today.