Keyword research is an important technique used by search engine optimization professionals to research and identify the exact terms which people type in search engines in order to perform a search.Keyword research is one of the foundations of search engines and the keywords affects
the following on page factors:

* URL
* Title tag
* Navigation links
* Metadata
* Headers
* Actual Content
* Image names
* Alt attributes

The various tools used for keyword research include Google adwords,Wordtracker, Keyword
Discovery.Take a view of the discussion in this forum highrankings.com/forum/index.php?showtopic=38454 to view the post regarding keyword tools.