WordTracker

Wordtracker is the preferred keyword research tool of Internet marketers.

WordTracker is the best keyword tool as far as the quality of the keyword returned and to identify niches.

You should always start your keywords research with WordTracker when doing search engine optimization, market research, content development and product creation.

WordTracker allows you to specify exactly how you want it to retrieve and present your results, allowing you to stipulate uppercase, plurals, and more and combine in the results or split as separate results.

For some people, using Wordtracker on an as-needed basis will work. If you just want to find out the demand and supply of a particular topic or niche, the free version of WordTracker may be all you need.

But if you want to build search engine optimized web sites or keyword focused article pages, then you need to go for a paid version of WordTracker.

If you are serious about internet marketing and niche marketing, then WordTracker is a MUST. It should be one of the first tools you should get.

I highly recommend WordTracker.
Find out more about WordTracker here.

Many marketers use both WordTracker and Keyword Elite. Keyword Elite is great to organize the results you're getting from WordTracker.

$329 one year
$59 one month

Free version with limitations.

Keyword Elite is another powerful keyword research tool. It generates large keyword lists from Google, Yahoo, Ask and other search engines, and provides detailed competitive analysis.

It is not only a keyword research tool, it is a spy tool, a clean up tool, and a web page generator tool.

Keyword Elite is a very useful tool for highly-targeted SEO research and scoping out competitive sites.

Keyword Elite will analyze your competitors' web sites. You just paste in their url, and it will tell you why they are at the top of search engines and give recommendations on how to match them. It is not extensive analysis, but it can show you the onsite methods they are using.

It compiles massive keyword lists and gives you the best keywords to target with Adwords.

Keyword Elite tells you the exact prices on ad bids so you can figure out potential profit margins, what it takes to enter a market, if you can go after cheaper keywords (which you won't really know if you've only run a list of 200 keywords - you really need to go deeper into the longer list of keywords.)

I can mention only one negative: It doesn't show a score for your key phrases.

You can have Keyword Elite automatically log into your Wordtracker and Keyword Discovery accounts if you have those. It makes a powerful combination.

Very good. Highly recommended. More information about Keyword Elite here.

$176 includes lifetime upgrades

Keyword Discovery

$49.95/mo

Google keyword research tool. Use the Keyword Tool to get new keyword ideas.

It's a great tool but you don't get specific numbers about the competitiveness of the keywords as you do with WordTracker.

Free