Adwords

Adwords is a pay-per-click (PPC) program provided by Google.  After joining Adwords, advertisers upload their text and/or image ads, specify applicable keywords, and select an amount they are willing to pay.  The advertisements can either show up in Google’s search results or on a publisher’s website that is enrolled in the AdSense program.  This has been a popular ad program because the advertiser only pays when their ad is clicked, and the ads are targeted because Google delivers the ads to websites and search results that are directly related to the keywords pre-selected by the advertiser.