What is a search based keyword tool and how can it be helpful? A search based keyword tool tells you how many times a particular keyword is typed into the search engines each month. This is extremely important information for an Internet Marketer. When selecting keywords to base your web pages, blog posts or even articles on you want to target good keywords. A good keyword is one that has a decent search volume and relatively low competition. This article will discuss my favorite free search based keyword tool and my favorite paid tool.