An outdated way of trying to con the search engines is to stuff your web site with a whole lot of repeated keywords. This worked a long time ago, but definitely does not work now. In fact, keywords stuffing could get your website de-indexed by the search engines because search engine technology has come on a long way since the days when this used to work. Any SEO company that tries to improve your rankings with this faded old trick should be sent packing.
I recommend that your create content that is interesting, informative and
entertaining as possible. Just focus on the one
keyword for each page on your website. If you
include the keyword in the first and last
paragraphs and then avoid keyword stuffing then
will be perfectly acceptable to search engines and
your human visitors.
If you take pride and pleasure in your content
then this will show and people will be genuinely interested in seeing your new updates. If you dont have the time or inclination to do this then hire a skilled writer to maintain your site; it can be done in a few hours each week and the investment needed will be worth its weight in gold.
Look for an SEO who uses or encourages content to the site, as this is what both the addition of regular, useful people and search engines rate highly, not jumbled repetitions of phrase which mean nothing when read.