TRAFFICROUP.com is just a front for exploits. Linking to these thieves will you get you a similar listing on siteadvisor.
Doing business with these crooks is just ruining your future. If you sell them traffic you are infecting your surfers with trojans that steal from you(and risking being blacklisted by the major antispyware companies). If you buy their traffic you are funding their trojan network(and also risking being related to these guys within the antspyware circles), and getting customers that they infect first. Yes, all traffic they get is first routed to installs, and then to the sites that buy their infected traffic.
Go ahead, find a site that is pushing traffic to these guys, and see for yourself.