When I first got into hobbying, I found the Eros websites for the major cities to be in general a fairly decent place to check out local talent (either visiting or based in the actual city).  Over time, I have found and I think many others will agree, that a lot of the listings are bogus (bait and switch).  Legit providers still use their service, but its sometimes difficult to weed out the real from the fake.  You can always use tineye to check the photos, but if you play the probability game, I have found that if the advertisement has a link to a personal website its usually a pretty good chance the girl is legit.  If she only has a phone number, its a pretty good chance its totally bogus, and if she provides both a phone number and an email its sort of a 50-50 proposition.  I also have found that numbers with certain area codes seem to be predominantly bogus as to the legitamacy of the lady.  Anyone else found other ways to weed the good from the bad?