Search Engine Optimization - SEO Basics - Part 6 - Overusing Keywords
It is not certain that Google and other Search engines penalize you for using to many keywords, or a few specialized keywords too many times in your page.
However, Many people believe that these large advertisement providers may consider the overuse of keywords a form of spam. And even if they don’t, your readers will not appreciate you using the term “work at home” in every single sentence on your page.
We all want to use the best keywords to have Adsense or some other advertiser provide us with the most relevant, highest paying advertisements. But it is also speculated that if they feel that your website is saturated with keywords that you may be trying to spam them.
The best way to determine if advertisers have determined your keyword ratio to be spam is to watch the value of your click through. If your making a decent amount per clicked then it suddenly drops to a much lower amount, then the algorithms may have misinterpreted your intent and designated you as a spam site.
Unless you have intentionally added a giant list of keywords intending to fool the bots then I suggest you rewrite your page and use the keywords less.
Unfortunately, we do not know the ratio that is permissible, and in fact we do not even know if there is a ratio of acceptable keyword usage.
My advice is to use acceptable keywords that are pertinent to your topic, while at the same time keeping the idea that there may be a ratio in the back of your mind.