Question for Discussion: Keyword Purchase as a Species of Ambush Marketing By Marty Schwimmer on May 29, 2002 Email this postTweet this postLike this postShare this post on LinkedIn Read this article from Brandchannel’s site on the accepted practice of ambush marketing. Is purchasing a competitor’s name as a search term on a pay-for-performance search engine (such as overture.com) different (legally, as opposed to ethically)?