A system and method is disclosed for bidding on search engine marketing keywords at a search engine. The system comprises a bid management system, which is configured to bid on keywords at a search engine, configured to determine a keyword for evaluation and one or more measures for the keyword. The measures are dependent on social media content hosted by one or more social media platforms. The bid management system uses the social media measures to determine a level of popularity for the keyword based at least in part on the one or more measures.