Google AdWords allows you to display your ads on Google and its advertising network. With the largest market share among search engines, Google is the place to start.
Yahoo! is the second largest U.S. Internet search engine with approximately twice the market share of Bing. This is an excellent place to expand your search marketing visibility to help you grow your business.
Bing is Microsoft’s new search engine, advertised as a “decision engine”, which is designed to help people make “faster, more informed decisions.” In recent months, it has gained market share from both Google and Yahoo.