We have a website called [url removed, login to view], the site will have a number of free articles and seo tools for non members. We will also have a area for members only where there will be hundreds of support documents and tools for seo also. We want a simply but effective process of offering a low cost annual membership which gives access to the members area. The system should have a payment system using paypal and making use of the IPN system to make payment automatic. The main tool is a website health check and we want to limit members to check only one domain name, the one they signed up with. I want to attract members and make the process really easy to sign up.