The first thing to do is to decide the basic idea of your site. This is sometimes referred to as core keyword, as you can use this one keyword to get many others. For example, if your site is about how to invest in the share market, your seed keyword may be “share market.
Next you want to choose some less broad, and more specific keywords. For example you might choose, “share market investing,” or, “how to invest effectively in the share market.” When you check out various keywords, you’ll need to take note of two things. One is the popularity of traffic, or number of people typing that exact keyword in. The other is the no of competition, or other websites that are about that fussy keyword phrase.
The best potential scenario is to get a keyword with high traffic that means a lot people searching for that keyword, and a less amount of competition. The quantity of competition is the number of sites that Google and other search engines consider to be about that specified topic.