Dear fellows, Hi, Can I put , adsenese , target first and yahoo ads on my main pages and on others, Is it legal ? or i will be penaltize thanks
Read the TOS for each program. If you have to ask this question you obvioulsy haven't yet. Not reading it is a sure fire way to cause problems for yourself down the road.
I agree, questions like this are specifically addressed within the Adsense TOS. If you're using adsense, then you should know these TOS inside and out. But to answer your question No you cannot. Whether you get penalised or not depends on your definition of penalised - you risk loosing your adsense account completely.