I work at a school. One of the roles I have is to educate kids about internet safety as I am the Web Developer. What I have found in the age group of 11-15 is that the kids think that they are safe because they don't "see" the person face to face. They don't think about who they are talking to, or what they are even typing. They think that they have a barrier to bad people because they are communicating thru a computer and internet line.
I have found a really neat site that has mini-movies about teens who have actually experienced the dangers.
http://www.netsmartz.org/netteens.htm (Bear - that might be a neat site to send to your daughter for her to share with her friends) These are true stories and seem to have an impact on some of the kids at the school. There is a lot of other information on the site that can be applied to various age groups depending upon their maturity.
Also, there is a site for elementary students too.
http://www.netsmartzkids.org/indexfl.htm
The site I am worried about is run by a very popular net dating / meet people / adult content site. If anyone would like the web address to check this out, PM me and I will send it to you and you will know what I mean. I don't think that they would want me as a moderator - LOL.
BTW - I have yet to receive a reply to my email. I am going to give them another week and then I may email our state news channel and our attorney general the information along with the url and my concerns. Iowa right now is really trying to cut down on the opportunities sex offenders have and I hope that they won't forget to be concerned about the internet.