Keyword placement can make a big difference in the overall rankings of your site. It actually does matter where your keywords appear. The search engines have a big job to do. They are trying to provide relevant results from our searches so they use all of the bits and pieces on a website that they can to determine how relevant your site is.

If you determine while doing your keyword analysis what your best keyword phrase is then you would not use that word in the bottom of your text on the page. You also must make sure not to "stuff" all of your keywords for each page. Each page of your site should be very descriptive about itself and optimized on its own content.

Want to see what the most popular keywords are? You can use a Free tool here - Wordtracker