I've worked for several escorts companies and even owned one at one point. Many companies buy stock photos and put them in ads either in newspapers like the LA Weekly, Village Voice or nowadays, internet sites like erosguide.com or cityvibe.com. The higher end escort agencies will go one step higher. Some of the companies will make fake profiles. Everyone in the escort business has done a switch n bait. Which is something I believe is being done. As far as reviews go, most agencies make alot of that shit up. The better the review, the more likely you'll be getting more business. TER and bigdoggie.net are the two biggest escort review sites. There are several more, but those don't matter. I know several porngirls who do privates, but they never advertise. They keep it all low key.