What do you mean what are some techniques used for PPC? Google Adsense is the best. However, I don't really understand what you mean by techniques used. You should never have to many ads on one site and make it look way to unprofessional. Thats about the only thing I can say for that.
what are some techniques used when doing PPC? which search engines?
It is important to find out how the traffic is getting to your site when you are using a ppc. If it is through pay to click programs then you can expect quite a few banner impression...maybe...and the click throughs might drain your budget with no conversions to sales. If your clicks are coming from people browsing based on interest, be sure to see how many competing sites your listing will be listed with. The more of those sites present, the less worthwhile paying for traffic is.
PPC Techniques
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