'''Dynamic keyword insertion''' <ref>{{cite web|title=Using Keyword Insertion|url=https://support.google.com/adwords/bin/answer.py?hl=en&answer=2454041|publisher=Google Adwords|accessdate=2 September 2012}}</ref> is a feature provided by [[Google Ads]], [[Microsoft adCenter]] and [[Yahoo! Search Marketing]] to dynamically insert a [[Index term|keyword]] that is most relevant to the ad to be displayed. It helps advertisers to use relevant keywords on their ads while making it easier for them to create unique ads for a large number of keywords.
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One user searches for "north carolina car insurance" and a second user searches for "maine car insurance". An advertiser bidding on car insurance keywords in both states can use dynamic keyword insertion to insert the user's state on-the-fly (see image to the right).
