Anyone that is going into rakeback - are you guys already affiliates, and have been for awhile? Do you have money to invest, strong knowledge of
SEO etc? Will you be able to get the best deals at rooms to compete with the highest rates right off the bat(not a huge deal with Poker Affiliate Solutions, but still something to think about). Do you have an established playerbase already? Will you be able to go after smaller niche markets, like have your site professionally translated into another language or something? Are you fine with receiving(depending on the room) a few percent of profit a month of total revenue, when you could be receiving 30%-50% instead?
Online poker is already very competitive. I'd say the rakeback market is the most competitive niche out there. Not wanting to discourage anyone, but making it in the rakeback market is very tough and you have to be fully prepared.