Choosing the right keywords for your site can get you high Search engine rankings.
In practice for higher search engine results it will be difficult to choose certain keywords,in practice, you should be able to get ranked in first page. , Google . To select the right selection of keywords, and the keyword Density. that, Google require for first page can be difficult So use a keyword tool, so that it will not be difficult to select one or more keywords. Of course, this kind of tool for a specific keyword, the search engine results are for Ranking. Also, in practice it's not exact,down to lots of hard work, lots of writting, will bring Google's first page . First of all The keywords you use on your Web sites must relate to the focus of visitors needs. To select the right keyword Density, there is an equation see it at
http://submissivehosting.com/index.php?p=1_3_Keyword-Density