Hello, I am using Codezap since 4 months and they are really impressive I am daily receiving 500 hits from codezap and their ratio is also good, 2:1 is not bad in my opinion with pure hits. If you need some serious hits when just visit www.codezap.com and start exchanging traffic with them. I guess, If you're using adsense on your site then this might be not good for you as it uses popup. P.S:- no affiliate link mentioned!