I recently found a long tail keyword that has no competition at all. My question is what do I really need to become to on top? To have exact keywords would me make me on top? Do I need have to purchase a domain that exact match with the keyword? I have a domain already but its general only one word match with keyword. Do I need to submit articles, backlinking, social bookmarking and forum posting? What is the best CPA that pays via paypal? Thanks.