Bing (search engine) focusing on Bing's search features and functionality. The ads claim that Bing does a better job countering "search overload". Bing has been heavily advertised as a "decision engine", though thought by columnist David Berkowitz to be more closely related to a web portal. Bing Rewards was a loyalty program launched by Microsoft in September 2010. It was similar to two earlier services, SearchPerks! and Bing Cashback, which were subsequently discontinued. Bing Rewards provided credits to users through regular Bing searches and special promotions. These credits were then redeemed for various products including electronics, gift cards, sweepstakes, and charitable donations. Initially,
Web search engine it gives back. While there may be millions of web pages that include a particular word or phrase, some pages may be more relevant, popular, or authoritative than others. Most search engines employ methods to rank the results to provide the "best" results first. How a search engine decides which pages are the best matches, and what order the results should be shown in, varies widely from one engine to another. The methods also change over time as Internet usage changes and new techniques evolve. There are two main types of search engine that have evolved: one is a system