Bing is a search engine from Microsoft that was launched on May 28, 2009. Microsoft calls it a "Decision Engine," because it's designed to return search results in a format that organizes answers to address your needs. When you search on Bing, in addition to providing relevant search results, the search engine also shows a list of related searches on the left-hand side of the search engine results page (SERP). You can also access a quick link to see recent search history. Bing uses technology from a company called Powerset, which Microsoft acquired.
Bing launched with several features that are unique in the search market. For example, when you mouse-over a Bing result a small pop-up provides additional information for that result, including a contact e-mail address if available. The main search box features suggestions as you type, and Bing's travel search is touted as being the best on the net. Bing is expected to replace Microsoft Live Search.