Web Search Engine

A web search engine is designed to search for information on the World Wide Web and FTP servers. The search results are generally presented in a list of results and are often called hits. The information may consist of web pages, images, information and other types of files. Some search engines also mine data available in databases or open directories. Unlike web directories, which are maintained by human editors, search engines operate algorithmically or are a mixture of algorithmic and human input.

How web search engines work

Web search engines work by storing information about many web pages, which they retrieve from the html itself. These pages are retrieved by a Web crawler (sometimes also known as a spider) — an automated Web browser which follows every link on the site. Exclusions can be made by the use of robots. text. The contents of each page are then analyzed to determine how it should be indexed (for example, words are extracted from the titles, headings, or special fields called Meta tags).

WebCrawler is a meta search engine that blends the top search results from Google, Yahoo!, Bing Search (formerly MSN Search and Live Search), Ask.com,  About.com, MIVA, Look Smart and other popular search engines. WebCrawler also provides users the option to search for images, audio, video, news, yellow pages and white pages. WebCrawler is a registered trademark of Info Space, Inc.

WebCrawler was originally a separate search engine with its own database, and displayed advertising results in separate areas of the page. More recently it has been repositioned as a meta search engine, providing a composite of separately identified sponsored and non-sponsored search results from most of the popular search engines.

Some search engines, such as Google, store all or part of the source page (referred to as a cache) as well as information about the web pages, whereas others, such as AltaVista, store every word of every page they find. This cached page always holds the actual search text since it is the one that was actually indexed, so it can be very useful when the content of the current page has been updated and the search terms are no longer in it. 

When a user enters a query into a search engine (typically by using key words), the engine examines its index and provides a listing of best-matching web pages according to its criteria, usually with a short summary containing the document's title and sometimes parts of the text. 

Most search engines support the use of the Boolean operators AND, OR and NOT to further specify the search query. Boolean operators are for literal searches that allow the user to refine and extend the terms of the search. The engine looks for the words or phrases exactly as entered. Some search engines provide an advanced feature called proximity search which allows users to define the distance between keywords.

Most Web search engines are commercial ventures supported by advertising revenue and, as a result, some employ the practice of allowing advertisers to pay money to have their listings ranked higher in search results. Those search engines which do not accept money for their search engine results make money by running search related ads alongside the regular search engine results. The search engines make money every time someone clicks on one of these ads.

MARKET SHARE AND WARS

According to Net Market share. In December 2010, rankings the market share of web search engine, showed Google is 84.65%, Yahoo is 6.69%, Baidu is 3.39%, Bing is 3.29% and other is 1.98%. The Google's worldwide market share peaked at 86.3% in April, 2010. In the United States, Google held a 63.2% market share in May 2009, according to Nielsen Net Ratings. In the People's Republic of China, Baidu held a 61.6% market share for web search in July 2009.

The less you know, the more you make.

"Salary Theorem" states that "Engineers and Scientists can never earn as much as Business Executives and Sales People." 

This theorem can now be supported by a mathematical equation based on the following two postulates:

1. Knowledge is Power.
2. Time is Money.

As every engineer knows:
Power = Work / Time

Since:
Knowledge = Power
Time = Money

It follows that:
Knowledge = Work/Money.

Solving for Money, we get:
Money = Work / Knowledge.

Thus, as Knowledge approaches zero, Money approaches infinity, regardless of the amount of work done.

Conclusion:
The less you know, the more you make. 

Why it's better to be a Woman!

1. We got off the Titanic first. 

2. We can be groupies. Male groupies are stalkers.

3. We can cry and get off speeding fines. 

4. We've never lusted after a cartoon character or the central female figure in a computer game.

5. Taxis stop for us. 

6. Men die earlier, so we get to cash in on the life insurance. Haha..

7. We don't look like a frog in a blender when dancing. 

8. Free drinks, free dinners, free movies ... (you get the point). 

9. We can hug our friends without wondering if she thinks we're lessy. 

10. New lipstick gives us a whole new lease on life. 

11. We can congratulate our team-mate without ever touching her. 

12. If we're dumb, some people will find it cute. 

13. We have the ability to dress ourselves. 

14. If we marry someone 20 years younger, we're aware that we look like an idiot. 

15. Our friends won't think we're weird if we ask whether there's spinach in our teeth. 

16. There are times when chocolate really can solve all your problems. 

17. We'll never regret piercing our ears. 

18. We can fully assess a person just by looking at their shoes.

19. We know which glass was ours by the lipstick mark. 

20. We have enough sense to realize that the easiest way to get out of being lost is to ask for directions. Huhu.. J