Because the Web is not indexed in any standard manner, finding information can seem difficult. Search engines are popular tools for locating web pages, but they often return thousands of results.
Search engines crawl the Web and log the words from the web pages they find in their databases.
Because some search engines have logged the words from over 500 million documents, results can be overwhelming. Without a clear search strategy, using a search engine is like wandering aimlessly in the stacks of a library trying to find a particular book. Successful searching involves two key steps. First, you must have a clear understanding of how to prepare your search. You must identify the main concepts in your topic and determine any synonyms, alternate spellings, or variant word forms for the concepts.