Google Search Network
The Google Search Network is made up of Google and their search partners. These include Google and other sites such as AOL, Netscape, Ask and so on. Advertiser’s text ads (and image ads when using product extensions) can appear alongside the search results for specified keywords.
Using the search network allows you to target customers that are more likely to be in the buying stages of their shopping process and are searching out someone to do business with.
More detailed information about the Google Search Network.
 Where do Google Search Ads Appear?
