Search engine marketing marketing to attract business. Search engine marketing Search engine marketing (SEM) is a form of Internet marketing that involves the promotion of websites by increasing their visibility in search engine results pages (SERPs) primarily through paid advertising. SEM may incorporate search engine optimization (SEO), which adjusts or rewrites website content and site architecture to achieve a higher ranking in search engine results pages to enhance pay per click (PPC) listings. In 2007, U.S. advertisers spent US $24.6 billion on search engine marketing. In Q2 2015, Google (73.7%) and the Yahoo/Bing (26.3%) partnership accounted for almost 100% of U.S. search engine
ChaCha (search engine) April 2009, Rick Reilly spent some time working for ChaCha for an article on "ESPN The Magazine". ChaCha (search engine) ChaCha was a human-guided search engine. It provided free, real-time answers to any question, through its website, or by using one of the company's mobile apps. The company, founded in 2006 by Scott A. Jones and Brad Bostic, was based in Carmel, Indiana, United States, part of the Indianapolis metropolitan area. Its name comes from the Mandarin Chinese word "cha" (), which means "to search." ChaCha answered questions through the use of independent contractors called Guides. Guides were paid $0.02