What is a keyword? Keywords are words which describe the nature of content on a page. These are used by contextual programs to identify which ads to serve. So if Adsense or YPN determines the keyword to loans and payday  on a page, it will serve related ads while if it finds holiday and fun, it may serve vacation and travel related ads. This means that once you are able to finetune the keywords on your site, you can control the type of ads served and in turn get higher paying ads. There are various keyword analysis tools available on various sites to help you optimise your keyword strength.

On 101-seo-resources.com, you will find links to such tools along with a very short review of each.

There are basically two types of keyword tools available. The first is the keyword ranking tool while the other is a keyword density tool. The keyword ranking tools basically allow you to monitor the effectiveness of your pages with respect to pre determined keywords on different search engines. The keyword density tools, on the other hand, are more analytical and tell you how optimised your pages are for certain keywords and how best to improve them.

101-seo-resources.com is not only about keyword analysis tools. There are a wide variety of other sites listed including directories, forums, blogs, graphics, SEO training etc.