Understanding search engines 101:

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The Internet boasts an enormous, and steadily growing, number of pages, billions of pages. Internet users, therefore, need a roadmap when navigating the Web. That roadmap is provided by Internet search engines like Google, Yahoo!, MSN, AOL, et al. Thus, the majority of Internet users turn to search engines or directories when searching for products, information and other Web content. Indeed, 85% of all Internet traffic is generated by search engines, and 70 percent of all online purchases originate from a search engine or directory.

So ........... Here is how search engines work:

The most common type of search engine is an algorithmic, spider-based engine. A spider is a search engine element that scans (crawls) the Internet in order to build and maintain the search engine's index of Web pages. The search engine's proprietary algorithms then determine the importance and eventual ranking of the pages in the index.

In order to build a successful, prosperous online presence for your Web site, search engine users must be able to find the site. Thus, you must ensure that your Web page attains a listing and high ranking with the applicable search engines. Top rankings with the four top engines: Google, Yahoo!, MSN, and Ask; is particularly important if you wish to gain Web-wide visibility.

Although the exact methods vary, most search engines focus on such Web page elements as page copy, Title tags, keyword usage, and the relevance of inbound hyperlinks when calculating the relevance and ranking of indexed Web pages.
About Organic and Paid Search Engine Listings

Most major search engines display a combination of algorithmic (aka "organic") and paid search results when answering users' queries.

The organic are the main results, often labeled "Web Results" or something similar. Paid listings are displayed separately on search result pages and generally listed as "Sponsored" results.

The organic search results returned by a search engine for a given search keyword are generated through intricate ranking calculations that determine the relative relevance of the Web pages listed in the search engine's index in relation to the entered keyword(s). These ?organic ?results are the "true" output of the calculations that comprise a search engine's ranking algorithm. A high organic search engine ranking can only be attained through effective search engine optimization (occasionally, certain Web sites will automatically rank highly for very particular, non-competitive keywords).

Paid search engine advertising offers an alternative or companion to positioning a Web site for organic search engine listings. Most paid search engine advertising is built around the so-called pay-per-click (PPC) concept. Simply put, PPC allows advertisers (i.e., Web site/business owners) to bid for the top ranking for a given keyword. The advertiser that places the highest bid is ensured the top ranking for that keyword. Until he/she is outbid. The second-highest bid is secured the number 2 ranking; the third-highest bid will claim the 3rd spot, etc.

If you are willing to pay for it, and perhaps even engage yourself in bidding wars with other advertisers, PPC can be an enticing option. Many large-scale e-businesses rely on a combination of paid advertising and targeted SEO.
The Top Search Engines

1.Google
Among the Internet's search engine, Google continues to rank supreme. Accounting for roughly half of all worldwide Web searches, the Google search engine is in a league of its own in terms of popularity. Google's search results are comprised of algorithmic results ?partly based on the Google's PageRank determination of Web pages' overall importance ?and paid results generated by Google's AdWords pay-per-click advertising program. Web pages can be submitted directly to the Google search engine at no cost. Google's directory displays results from the Open Directory Project.

2.Yahoo!
The Yahoo! search engine currently is the biggest rival to Google's search supremacy. Having developed its own algorithmic search technology after years of licensing search results from Google, Yahoo! has successfully created a very popular, all-encompassing Web portal that also includes Yahoo!'s proprietary Web directory. Sponsored results in the Yahoo! search engine are generated by Yahoo!'s Search Marketing pay-per-click program. Web pages can be submitted to the Yahoo! search engine at no cost, but a Yahoo! User ID is required for submission.

3.MSN Search
The Internet's most visited Web site, msn.com, is home to Microsoft's MSN search engine, which is currently the third-most popular search engine on the Web, trailing only Google and Yahoo!. After relying on Yahoo! search results for years, Microsoft in early 2004 unveiled its own algorithmic search engine technology to rival those of its main competitors. Microsoft has also launched a proprietary paid advertising program for its search engine. Web pages can be submitted directly to the MSN search engine at no cost.

4.Ask
The P.G. Wodehouse butler-branded search engine occupies a distant 4th position on the search engine market. After initially carving out its own niche as the search engine "one could ask real questions," Jeeves is now a more traditional search engine, which relies on its Teoma search engine for algorithmic search technology. Web pages cannot currently be submitted directly to Ask. However, the Teoma spider visits and considers for indexation a large number of pages during its frequent crawls of the Web. Sponsored results in the Jeeves search engine are provided by Google's AdWords program.

5.AOL Search
The hugely popular America Online Web portal is home to the AOL Search service, which is powered by the Google search engine. Pages indexed by Google are thus also listed in AOL Search. Directory results at AOL Search come from the Open Directory Project.
 
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