another idea fro keyword research

1. Find long tail keywords with high search volume. You can use Stealth Keyword Digger to find hundreds of long tail keywords with high volume search. You can do that with Google keywords tool too but the results are less accurate and poorer.
2. Check which of the found long tail keywords have low competition using SEO Quake firefox plugin
3. Choose a long tail keyword with low competition and register it as a .com .net or .org exact match domain.
4. Write quality unique articles based around the chosen keyword and LSI keywords. The articles should be useful to the readers.
5. Create a link back to your article on Facebook, Stumble Upon, Digg, pinterest, etc. for quick indexing.