How Microsoft Bing Works

Microsoft Bing home page
Courtesy Microsoft

The popularity of the personal computer as a business tool has a lot to do with a company founded by two men, Paul Allen and Bill Gates. In 1975 the duo wrote a version of BASIC for one of the very first personal computers, the Micro Instrumentation and Telemetry Systems (MITS) Altair [source: Microsoft]. It wouldn't be long before their success would lead them to found their own software company called Micro-Soft.

Now, after more than 30 years, one corporate name change and several operating systems later, Microsoft is on top of the computer world. In the meantime, Gates and Allen have become billionaires, with Gates reigning as the richest man in the world. Even an $18 billion loss in 2008 didn't knock him off the top [source: Forbes].


And of course Microsoft creates more than just operating systems. It's also responsible for the immensely popular Office suite of productivity software, the Xbox video game console, the Zune portable music player and more. But despite its size and stature, Microsoft doesn't dominate every market in which it participates. For years it has struggled to compete in the Internet search engine market. It's got stiff competition -- with more than 60 percent of the market share, Google is the undisputed king of search engines. In order to compete with Google more actively, Microsoft decided to replace its Live Search product with a new search offering called Bing.

This article will give you a close look at some of the features found in Bing. Later, you'll will see how the two sites stack up in a side-by-side comparison. But first, you should know that Microsoft doesn't refer to Bing as a search engine at all. To see how Microsoft has decided to refer to its new product and why, take a look at the next page.


Bing: The Decision Engine

Bing Travel is powered by Farecast technology.
Courtesy Microsoft

Microsoft refers to Bing as a "decision engine." With nearly 240 million Web sites on the Internet as of July 2009, you can imagine how vital an effective search method can be to the success of any search engine [source: Netcraft].

So what's the difference between a search engine and a decision engine? Perhaps it's philosophical. According to Microsoft, Bing is designed to minimize the amount of junk you get when you perform a search and to help simplify tasks so you can make the most informed decision.


Bing focuses on four target areas: shopping, travel, local and health. Its stated underlying goal is to simplify search. It starts with Bing's homepage, which displays a search box in the middle of a colorful image and a row of clear links on the left of the page that bring up results for video, news, shopping, images, travel or maps. Once you begin your search, Bing has an Autosuggest feature that recommends words based on the first few letters you type, then lists them for you to chose if one should meet your match. Best Match is similar to Autosuggest -- it offers you what Bing believes is the most suitable match.

Bing aims to organize searches in ways that are easy for users to navigate. It starts with the Explore Pane. Found on the left side of the home and results pages, the Explore Pane is intended to help you efficiently weed through your search results. Also found on the Explore Pane is a list or history of your recent searches, as well as recommended related searches Bing believes you may be interested in.

Deep Links let users preview a Web site without actually clicking on the link. Depending on whether enough information is available to create the preview, you can hover your mouse pointer over a link for a site in your search results, which gives you an idea of what you can expect if you click through. According to Microsoft, 24 percent of clickthroughs for search results result in return clicks once users realize the site isn't what they're looking for [source: Microsoft].

For quick bits of information like flight numbers and sports scores, Instant Answers quickly displays the most relevant information based on your query. This means if you have a timely or geographically oriented question, Bing will tailor the result to focus on the most important data, hopefully saving you time. Bing Travel is a travel feature using the popular Farecast technology which allows users to find low air fares as well as hotel reservations. Microsoft did its homework when adding this search feature -- according to a study cited by Time magazine, Farecast returned more that 75 percent accuracy rate for searches and users saved and average of $55 off their airfare [source: McNichol].

So how does a computer program do all of this? The answer is in the programming code. Just as its competitor Google did, Bing employs an advanced set of rules or instructions that each search goes through in order to narrow down and filter the best results. These sets of rules are known as algorithms, and, much like a certain fast-food chicken restaurant's secret recipe, Microsoft isn't willing to share the nuances of how Bing's brain works in a public forum. Some trade secrets are still kept confidential.

Now that you've learned what Bing offers, let's see how it stacks up against the search engine of choice for more than half the Internet users in the world.


Bing vs. Google

The Web site lets you see how the two sites stack up.
Screenshot by

You've heard it all before. It's the most overused axiom in any event where the underdog takes on the top dog: David versus Goliath. The underdog rarely has a chance and almost never pulls off the improbable upset. That's sort of the case with Bing. With Google as the top dog of search engines, no company outside of Yahoo has been able to muster much of a challenge. Search is Google's bread and butter. Microsoft, on the other hand, is much more diverse. But Google's single focus has rewarded it with the largest piece of the pie.

Microsoft's Windows Live Search was a search engine that went along with the company's other Live-brand-named products. Live Search wasn't a dedicated search, or in Bing's case, decision engine, and couldn't compete with Google. That's why Microsoft built Bing.


To compete with the Google juggernaut, Microsoft jazzed up the appearance of Bing by displaying a colorful, and sometimes dramatic, picture on its entire home page. The picture changes daily. This is in sharp contrast to Google's blank white page. Embedded in these images are what Microsoft refers to as "hotspots." When the user scrolls his or her mouse over one of these hotspots, information boxes pop up to tell you more about the photo. For instance, an image of Mt. Vesuvius contains several hotspots that when scrolled over, reveal information of its deadly eruption in AD 79. You can follow any of these links to learn more.

Both Bing and Google have the same tabs to filter searches as well as preference menus. You can choose from tabs labeled Web, video, images, shopping, news and maps, and you can also set your preferences to filter explicit content. Google's popularity is due in large part to the effectiveness of its powerful search algorithm and patented PageRank system. Bing attempts to counter this with its best match feature which, like PageRank, sorts the results by order of relevance. For instance, when you search "NASCAR" in Bing, the top result, or best match, is, NASCAR's official Web site.

Below is a screenshot of how the two search engines handle the same inquiry. Notice the inquiry "how Bing works."

Perhaps Microsoft's boldest move -- the one that may have even raised eyebrows at Google was Microsoft's 10-year-long agreement to power Yahoo's search. Yahoo, in exchange, will throw its expertise behind advertising for both Yahoo and Bing search. Yahoo has the second-largest slice of the search pie at 20 percent. Combined with Microsoft's share, the new entity will have nearly half of what Google claims. Bing will take over Yahoo search in 2010. Over the first five years, Yahoo will receive 88 percent of advertising revenue. As part of the agreement, Microsoft is guaranteeing search revenue for 18 months in each country in which it operates [source: Fried].

Microsoft spent a reported $80 million in promoting Bing [source: McNichol]. Will it improve the company's market share? Over the long haul, it's anyone's guess, but in July 2009, shortly after Bing's release, Microsoft's piece of the pie increased to 10 percent of the search market [source Ngo].

For more information on search engines and related topics, make the decision to take a look at the links on the next page.


Lots More Information

Related HowStuffWorks Articles

More Great Links

  • Microsoft. "Bing Product Guide." (Aug. 13, 2009)
  • Business Journal of Milwaukee. "Forbes: Billionaire's list shrinks." March 12, 2009. (Aug. 19, 2009)
  • Doran, James. "Fear grips Google." The New York Post. June 14, 2009. (Aug 16, 2009)
  • Fried, Ina. "Yahoo, Microsoft Reach Search, Ad Deal." CNET July 29, 2009. (Aug. 26, 2009)
  • Friedman, Milton. "Policy Forum: The Business Communities' Suicidal Impulse." March/April 1999. (Aug. 16, 2009)
  • McNichol, Tom. "Can Microsfot's Bing take a bite out of Google?" Time. July 31, 2009. (Aug. 17, 2009),8599,1913841,00.html
  • Netcraft. "July 2009 Web Server Survey." (Aug. 17, 2009)
  • Ngo, Dong. "Bing Sees Slight Uptick in July." CNET Aug. 3, 2009. (Aug. 26, 2009)
  • Singel, Ryan. "Hands on with Microsoft's new search engine: Bing but no boom." May 28, 2009. (Aug. 18, 2009)