Obviously, as title suggests, it is a type of scam when the entire agency is a fraud. There are no real girls there, just fake profiles, "dead" databases purchased from other sites, paid employees and pro-daters.
I must confess that agency scams is the only type of scam this site doesn't deal with. We do have a small dating sites section, where regular posters can leave reviews about dating sites, but that's about it. It's just not our specialization to determine which sites are scams and which are not, though few obvious ones that pester us online, like interlingvo, we do list. We are more concentrated on "freelancers", i.e. individual scammers. Just like everybody else, we rely on Google to get some opinions on agencies, and you should, too. Google is your friend.
Overall, if you need information about agencies, please visit Jim's site, he specializes on the subject:
http://www.agencyscams.com" onclick="window.open(this.href);return false;
Also, I have a little article about it in our Dating section, "Ukrainian so-called "marriage agencies":
http://www.romancescam.com/forum/viewto ... 20&t=25565" onclick="window.open(this.href);return false;
http://www.russian-detective.com/scams/ ... cation.htm" onclick="window.open(this.href);return false;