Yes, I've signed up for the cartel. The site has a number of deals that can be used to get frequent flyer miles/hotel points. The site also has a number of tutorials about how to earn and burn miles. It also includes an alert service for when deals happen.

The cartel works on a monthly subscription basis, with three different price points availible. The "guarantee" is that the cartel will provide enough info to get 4 free tickets- you still have to act on the info. The cartel does give you miles though for one of 3 programs (UA, AA or US) if you refer people and they sign on for at least two months.

My overall impression is that the cartel is for folks who don't necessarily want to wade through posts on Flyertalk and other blogs just to find a deal. Most of the deals listed can be found elsewhere, but I did see a couple of new ones that I hadn't seen anywhere else.

For $15-35 a month, it's not a bad deal if you have more money then time and just want to know what the latest deals are. If you have more time then money and are a savvy Flyertalker, then this site may not be as useful. However, it's just starting (signups began yesterday) so I'm waiting to see how useful it becomes over time.

If you want to find out more or to join, go visit the site (this is also my referral link).