
Starting any Marketing campaign is useless if you do not do the proper Marketing Research. Don't waste time trying to create a market when you can market to one that already exists. Google Adwords Keyword tool costs nothing and out performs any tool on the market.
The key mistake made by most unsuccessful marketers is the lack of, abuse of or improper use of keywords in their articles, Pay Per Click (PPC) campaigns and on their landing pages. If the keywords in your PPC campaigns, do not rank well, don't match your product, and are not relevant to your landing page you may end up with less than successful marketing results not only with the search engines but also with your market.
Keywords: words and or phrases that search engines record when users do a search. The more a keyword or phrase has been searched on is the first indication of its quality.
It's important that you understand the value and how to properly use keywords and phrases in marketing and how it relates to not only finding a market but also products relevant to that market.
There are hundreds, maybe thousands of Adwords Marketing products that claim to give you the best keyword and keyword phrases.
Since 80% of the worlds Search engine traffic goes through Google it's a no brainer to use the Google keyword suggestion tool.
Go to: [https://adwords.google.com/select/KeywordToolExternal].

Keywords: This is what you will see...

Approximate Search Volume: shows how many times your keyword or phrase was searched on for the previous month (not "clicked on"). This information sometimes runs in line with the "Approximate average search volume" which shows the searches for the last 12 months. "Advertiser competition" means just that, how many websites are using these keywords or phrases.

Advertiser Competition: It's not uncommon to find a keyword or phrase with high search volume and low competition. Finding these type of keywords can be the start to a Successful Marketing campaign. On the other hand, if done correctly you can successfully compete using a highly competitive list of keywords.

To view how Google rates your competition, go to: Google.com and type "stress" in the Google search bar. At the time I wrote this article www.stress.org was second in the list of websites competing for the keyword "stress". The PPC ads under the "sponsored links" section on the right shows you what stress related products and services others are offering to this market.
Go back to the Google Keyword Tool and select "website content" on the left and place [http://www.stress.org] in the appropriate field then select "Get keyword ideas".
This shows you the "Keywords related to stress..." within the website Stress.org. The keywords are abundant and cover many of the topics related to stress. Google places websites with tons of relevant content in the top of its search engine ranking.
Looking at this information gives you an idea of:
For instance: If your using Adwords Marketing (PPC) ads to get signups to your email list or to send people to your sales page then using Keywords in your ads that are related to your market are top priority. You would also need to use the Google Adwords Traffic Estimator to see how many clicks per day you can expect from your keywords.
For example: If your Landing Page is promoting stress reduction techniques (among other keywords related to stress); you PPC ad could read:
Stress Reduction, No Cost Report.
You already know that stress reduction is a favorably searched on keyword phrase. It is obvious that those who click on your ad will only be interested in reducing stress (because that's what the ad says). This is one way you can use Google's keyword search tool to your advantage. You can do the same thing with articles you write to post on your website and submit to ezines. You can also use Google to create a blueprint of your Website Link Structure.
I've just given you a grass roots Internet Marketing strategy that will allow you to find profitable markets. This is not the "end all be all" but it is a solid foundation which allows you to grasp how some of the top online marketers create opt in email lists with thousands of subscribers, make a decision on what to market and how to create products for their markets.
Best Regards,