How to select appropriate keywords to optimize for SEO?

[anuraag]

I have an e-learning website called www.graduatetestprep.com and we provide university students preparation for the GRE examination. This is an entrance exam required for admittance to graduate school across the US.

I was wondering what is the best way to find the best keywords focus on to optimize on google and the other search engines.

I feel I can't use "on-page" on pro-dashboard properly unless I have the right keywords to focus on.

Thanks

[Dan-Petrovic]

Try analysing your keywords in Google Webmaster Tools. You will discover some very nice opportunities in there:
https://www.google.com/webmasters/tools/home?hl=en

[saibose]

You can extract the initial set of keywords from Google keyword external. That should give you a reasonable starting matrix of the set you should targeting.

Also check out from real internet users ( maybe aspirants, students who would be likely to search something similar to your website's offering) to see what they would use to search for a website product like your's.

That would give you an idea of what keywods people are looking for.

Think as a user, not a internet marketer.

You can also try the SEOMOZ pro keyword difficulty tool. Thats pretty good as well