I am a clickbank affiliate too. Most clickbank vendor provide great tools and affiliate resource contents in they affiliate pages, but some not. You have to fill in the subscriber form to reach the affiliate area, sometimes you got nothing in the affiliate section. Once you confirm the subscription, you will recieve Thousands of emails with promoting purpose.
So, this is the only purpose I create Clickbank Directory site, you can find many useful affiliate resources without any subscriptions.
Hope it will help. If it hurt you, please contact me (cbdir.com@gmail.com), Thank you.