One of the ways a lot to get traffic is by using solo ads. Solo ads can be very very profitable but only if done correctly.
Udimi is a unique service that offers quality solo ads without click fraud. Udimi is a solo ad reseller, everybody on udimi has feedback a bit like eBay so you know that you’re buying a solo ad from a quality provider.
I used to use safe swaps to buy my solo ads from, however the company behind safe swaps, split out this solo ad section of this site to a new website called udimi.