What are search engines?

Search engines are databases that you find the desired content easier.

They analyze the content of Web pages and store the found words or other information in a database.

Documents that are not in the database are can not be found.
In general, do most visitors to a website on the search engines.

A user sends one or more keywords in the search engine then scans its database and this produces a result list of documents that contain these keywords.

In the results list, documents are all found listed as a hyperlink.
The user then branched to the appropriate document by simply clicking the link.

How much do search engines?

Normal search engines are free to the user.
Fees for searching in specialized databases requires only that it must be before a contract is completed.
Search engines are usually financed by advertising.

How do I find content on the Internet?

There are five ways to find content on the Internet.

You know the exact address, for example Sofitware.com,
You use search engines, search the bear there and get a list of addresses that contain these keywords,
Use web directories that contain links arranged by topic,
You can surf from one site to another by following the links provided
You use the bookmarks file to a specific address, which you have previously saved to call.