'''Dynamic keyword insertion''' <ref>{{cite web|title=Using Keyword Insertion|url=http://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 Adwords]], [[Microsoft adCenter]] and [[Yahoo! Search Marketing]] to dynamically insert a [[Index term|keyword]] that is most relevant to the ad to be displayed.<ref>{{cite web|title=What’s Search Engine Marketing Tactics?|url=http://primaldragon.com|publisher=www.primaldragon.com|accessdate=19 June 2015}}</ref> 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.
