How to choose profitable keyword??

[motionz]

Its not at all a simple process to do the keyword research for an entire site. At first you have select a correct niche which takes a long time. There are myriad number of factors that one should keep in mind while doing it. Such as is the niche too much competitive or not, if you are getting a niche which is not very much over crowded then does it have enough end users(people looking for it). Then comes getting the right domain. Your domain should contain the most effective keyword of you niche or atleast the head topic so that users will be able to know about what your site is.
And, for building content use competitive research of your fellow niche sites.