There are 2 parts to PPC, search and content. Both allows immediate traffic to your site but because its paid you need to evaluate if it makes business sense to use PPC for what you are promoting.
Pay Per Click (Pay per Click), which means that each click is paid a method of cooperation in internet advertising where the webmaster or site owner will be paid to every site visitor clicks on the link at the ad attached own website or blog. example google adsense, adbrite and bidvertiser
Sites for PPC: adsense bidvertiser gold-words yahoo publisher adbrite kontera clicksor valueclick partnerweekly fastclick kanoodle peakclick interclick compactads bidclix Chitika http://www.genieknowsmedia.com/