I would recommend you give a try to Payserve ( CLUB 17 )
Perhaps they aren't famous for webcams, but fact is that live teen webcams are one of the reasons why they are so succesfull.
They have also special webcam sites, like Top Cams, or Seventeen Live... I'm not so sure how everything is linked there
( many sites, many names, you buy access to one, get part acces to othrs etc... ) but I can only say that I bought a trial to Club 17 2 days ago and indeed they have somenice girls there on the webcams... So I guess they have even more girls live on the special webcam sites...
Anyway, it's definitely something you may take a closer look at, when you got webcam traffic
Link