Q: Anybody can put a web page on the internet and say anything! True or False?
A: TRUE!
This means that you have to verify reliably anything you see. For example if you are booking an act from someone on the Web, get them to E Mail a full list of venues that they have performed at and that they will appear at (A "Gig List") and CONTACT at random the venues mentioned. Verify the authenticity of everything mentioned and be suspicious of any witholding of information. Professional Acts will proudly be able to say where they have performed, where they will be appear next and what people have said about them, and venues will be more than pleased to vouch for them.