An ad group contains one or more a ads that share similar targets. Each of your campaigns is made up of one or more ad groups. Use ad groups to organize your ads by a common theme. For example, try separating ad groups into the different product or service types you offer.
An ad group contains one or more ads that share similar targets. You set a bid, or price, to be used when an ad group's keywords trigger an ad to appear. This is called a cost-per-click (CPC) bid. You can also set prices for individual keywords within the ad group.