Doing keyword research? The Google AdWords Keyword Tool is an absolute must! While the purpose of the tool is actually for businesses looking to advertise using Google AdSense, some of the tools in AdWords are amazing for SEO. To be able to use these tools, you must have an AdWords account (don't worry, you don't have to buy anything.) If you already have an account with Google or Gmail, signing up is a breeze.

The AdWords Keyword Tool allows you to find out approximately how many searches people make for particular keywords. This is important when selecting keywords, because you don't want to select phrases that nobody ever searches for!

The tool also shows what the average cost per click is for each keyword. This information can be used to give you an idea of how much money can be earned if you are trying to make money with Google AdSense.

To use the tool, just enter some keywords you think you would like to rank for. The tool will show you information about the keywords you entered and will also offer you some similar keywords you might want to try. This aspect alone, makes the AdWords Keyword Tool great for brainstorming.