so basically, if i have a domain that is random (ie. feit.info) i can just park it on one of these sites (listed above) an then somewhere in the setup I can choose which keyword to trigger the certain ads that will be placed on the site? then I can use the other techniques mentioned above and drive different types of traffic to this site and from there I make money? this sounds easy and I will give it a go. thanks for the post and all the other info from everyone else. this sounds like a cool additional income stream.