We found out that some camgirls at camcontacts and streamate stole pictures from photomodels. Then, they add those pictures to their profiles. The visitor sees those pictures and only discover he has been fooled after entering the chatroom.
Camcontacts and Streamate are good websites and I encourage you to read the reviews about.
You can spot those fake pictures. In google chrome, do a right click and click on "inspect". Then, click on the "sources" tab. On the left side, expand the folder trees and look for the picture. Click on the pictures, they will appear in a window on the right side of the folder tree. In the right image, right click and click on "copy image url". Then, paste this image url in tineye.com
Tineye is a website that archives all the pictures from every website. If the picture was used before, tineye will find it.
There is an alternative to tineye which is google images. Go to google images, click on the photocamera, and paste the URL.