Free Keyword Research Tool

Here is a list of free tools which could help you to do keyword research. You can look into these and pick 1-2 based on your preference. Using this in combination with adwords tool will give you very effective result.

KwMap
Generates a visual and textual representation of related keywords
Quintura
Generates a visual tag cloud in addition to its own textual search results
Reference
Generates dictionary, thesaurus, and reference information
Visual Thesaurus Generates a visual representation of word relationships

Code:

http://www.visualthesaurus.com/

Glossarist
Provides links to glossaries and dictionaries on all subjects
Webmaster Toolkit
Generates related keyword searches using many search engines, including Google
Keyword Discovery
Generates up to 100 related keywords and an estimate of their daily search volumes;
a paid version is available with no restrictions
Wordtracker
Generates up to 100 related keywords and an estimate of their daily search volumes;
a paid version is available with no restrictions
Search Forecast
Provides a keyword suggestion tool with the (predicted) number of searches

These are nice, but Google's keyword research tool is the most well known and quite frankly the best. That's my opinion though, thanks for sharing!

Thank you for the share OP - I can see a lot of effort has gone into this.

In terms of accuracy, I agree with the above post; Google's tool is better. But, most Keyword Tools pull the data from Google anyway.

Google's Keyword Tool can't be used efficiently for mass Keyword Analysis - for example, if you'r trying to find a niche you'll be there all week!

As for some of the tools above - with a little nifty PHP and Exel VBA Web Queries they can be used programmatically to generate the results you want by the hundreds!

So, thank OP!

which the better ? google keywor or them ?
thanks