The Internet is a veritable smorgasbord of information, where you can find everything you wanted to know on just about anything. There are millions of pages existing on the web and billions more being posted everyday. How do you ever find what you are looking for? Without using a search engine, seeking for information you want from the World Wide Web is like looking for a needle in a haystack.

Search engines can be used to find anything on the Internet- from interactive inter-state driving maps to finding the best yoga therapy schools in your area, from still images to video movies.

How search engines work

Search engines employ software programs commonly known as spiders or crawlers to discover new sites. This information is sent back to the main site where it is indexed. Different search engines differ in how comprehensively and quickly they carry out the necessary search.

As a rule, most search engines pay more attention to words that appear towards the start of the document as well as words that appear frequently all through the document. This is simply because the spiders focus on key words that appear to be significant.

When keyword searches do not work

While using keywords is one of the most efficient ways of doing an Internet search, it does have a few drawbacks.

Keyword searches are unable to distinguish between words that have different meanings but are spelled the same way such as a hard drive, hard work or a hard rock.

Keyword searches are unable to include other words that mean the same and would actually enhance your search. If you did a search on pulmonary disease, the search would not come up with documents that had the word "lung" instead of "pulmonary". This means you would not have access to valuable information.

On some search engines, a keyword search would differentiate lower case from upper case, eliminating even more results based on mere capitalization of words.

Getting the best results when using search engines

Here are a few ways to boost your Internet search and get the maximum benefit without spending hours going through a mountain of irrelevant information:

Be Specific: Narrow down your search by being as specific as possible. Entering the keywords "Harley-Davidson motorbike dealership" would give you far more specific information than just entering any one of the words separately. If you added the area you are looking in, that would narrow it down even more and give you very precise results.

Refine your search: Use the + symbol when you want the search engine to focus on all the words that are entered. For a search on cancer you could enter cancer+ causes +symptoms+ cure+ prognosis to get a complete overview of cancer.

Advertising on search engines

With the phenomenal growth of the Internet, just about everybody uses search engines to find information on the World Wide Web. What better place to advertise your products or services than on search engines!! Here are the three most popular kinds of search engine advertisements:

Pay-per-click search engine advertising: You only pay the host website for the number of clicks on your ad.

Banner advertising: An eye-catching banner ad is placed on a web page, which when clicked, leads the viewer to the target site. Banner ads could be static with text and pictures or creative with flashing images that attract the viewer's attention.

Paid Inclusion: You pay the search engine a fee to include your web pages in its editorial listings.

With the sheer volume of people using search engines in everyday life, search engine advertising extends your reach across the widest target audience. Search engine advertising is one of the most cost-effective marketing vehicles. Pay-per-click advertising on search engines costs just a few cents yet offers highly qualified leads as potential customers actively seek the advertised service or product.

With pay-per-click advertising, results can be concretely measured and efficacy of the ad campaign precisely assessed. Advertisements placed on search engines can be amended at any time during the campaign without having to start from scratch.