Twitter Traffic

hello friends, l got pr 2 on twitter and l am having nearly 1000 guests to sites l tweet in twitter, around 20 clicks on every tweet l post and l use feedtwitter to feed my twitter and having good results..
But l wonder a better service...
I was using articletrader to feed my twitter and as u see in results when they have something to feed l can even send them 500 daily visiters with their feeds. but when they dont publish an article as naturally l cant send them any visitor...
So please advice me what systems l should use...
I also can get ads to my twitter

This is my idea, market need a good affiliate system that feeds your twitter in times u want with quality ads....