most of adsense alternatives have requirements that 50% traffic should be from uk/us etc. but if traffic source is search engines you cannot gurantee that you will get that percentage of traffic from desired countries . so is there any adsense alternative accept global traffic .are you paid by such contextual ad network personally ?
There is many alternatives, unfortunately I dont know which ones are best. Did you try Clicksor, Adbrite or Bidvertiser?