Your goal is to rank your homepage for 2 – 4 keywords that get a lot of traffic (at least 15,000 monthly searches) every month! What most do is spend 1 minute using a free keyword research tool like Google's Tool and think they're done!
You want to spend a bit more time to uncover the BEST keywords that are very easy to rank for! That's one of the secrets to massive traffic in Google, easy to rank keywords!
Let's begin with keyword research tools, the free or paid tools, I recommend paid tools, since keyword research is CRITIAL you want to do it as best as possible – your goal is to uncover keywords that meet these two criteria