The Bid or Bid Value is the amount an advertiser is willing to spend for a keyword or phrase. Bid values are assigned to keyword terms and then used to determine the advertiser's rank within search results. A minimum bid is the smallest value for each keyword, set by the search engine, with many search engines starting bids at $0.05 per click. Bid Optimization allows an advertiser to manage their listings to maintain a desired position without overbidding. Bid Optimization Tools allow the advertiser to set maximum bid amounts and determines the search ranking as a result. Bid management tools compare all other bids and adjust the advertiser's bids to maintain the listing at the desired position.
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