These tools for keyword research and keyword analysis are totally free and can be of great help in researching your keywords and optimizing your web site. Most of the professional keyword research tools have to be paid for, but there still are some tools that are free of cost and well worth trying.

Here is the list:

1 Google Adwords keyword research tool

The Adwords Keyword Tool generates potential keywords for your ad campaign and reports their Google statistics, including search performance and seasonal trends. Start your search by entering your own keyword phrases or a specific URL. I personally use this keyword tool very often.

Especially the ‘Search Volume’ option and the ‘Cost and Ad positin Estimates’ option are very useful.

Try the Adwords keyword research tool

2 Rushmore’s Keyword research tool

Just recently I stumbled upon this very interesting (and free) keyword tool. It shows popular searches containing your keyword or phrase plus the number of searches and competing sites on Google. The query may take several mintues, depending on the keywords you are researching, but the information is worth the wait.

Try the Rushmore’s keyword tool

3 Keyword research with the Overture bid tool

Knowing which keywords are the most profitable is one key to high Adsense profits. Overture had a great (and free) bid tool available. But alas, the Yahoo Overture keyword bid tool is no more … but the UK version is still working. It doesn’t work in Firefox, but hey, IE is still on my computer

Try the UK Yahoo Overture bid tool

4 Overture Keyword selector tool

Not sure what search terms to bid on? Enter a term related to your site and this free keyword tool will show you related searches that include your term. And the estimated number of times that term was searched on last month. Very handy tool to explore your keywords.

Try the Overture keyword selector tool

Some more useful (and free!) tools are mentioned in an article from Mindvalleylabs