When it comes to evaluating niche markets, you also have to pay attention to relevant 'keywords'.

Keywords help you define who your customer base really is.

If you created a website featuring a product on starting a Cake Decorating business from home, simply focusing on the keywords "Cake Decorating" wouldn't necessarily draw in targeted traffic because not everyone looking for Cake Decorating tips is interested in starting their own home based Cake Decorating business.

Some may just want to explore new cake decorating techniques or recipes and would not be part of our target market.

However, if you know what keywords people who are really interested in creating a Cake Decorating business are entering into the major search engines, you can separate those people from the rest of the herd and effectively target your customer base by matching your keyword based marketing campaigns with the exact keywords they are using.

That's the importance of keywords; to drill down into your niche market so that you are directly targeting your customer base, rather than just a broader niche market.

When it comes to evaluating the profitability of a market before you set off to create your own info-product or promote existing products as an affiliate marketer, keywords can also help you determine exactly how profitable the market is, as well as how much competition exists within the market.

In order to know WHAT keywords to use throughout your niche blogs, you need to conduct quick "keyword research".

One of the easiest ways to find hot niche markets is by using Google's Adwords. Since Adwords is a PPC search engine used by advertisers, it's easy to determine what niches are profitable based on the level of existing advertisers, as well as the CPC (cost per click) of ads.

You can also use Adwords as a way of defining your keywords, based on the overall monthly search volume.

You start by visiting adwords.google.com/select/KeywordToolExternal and entering in your primary keyword.

You will quickly learn how popular different keywords are, how competitively targeted they are, as well as being given alternative (long-tail) keywords that you could use in your reviews for easier ranking in the search engines.

Here are a few other keyword tools worth checking out:

www.WordTracker.com

www.WordStream.com

So, begin by evaluating potential markets. Then, work towards evaluating the products featured within each niche market and finally, evaluate the level of competition.

Determine whether the niche is penetrable and if there is a fresh new angle that you can take to stand out in the marketplace.

Then, build targeted campaigns around promoting niche products or develop your own original information product to cater to the ever-growing demand.

Use keywords to better target your customer base, and to serve as the foundation for all of your marketing campaigns.