I've had several inquired on what the process will be for the new premium membership plans that will be rolled out starting this Sunday, April 3rd. The process will be very seamless for those already registered, using your existing account settings (username, email address, notification settings, etc...). This brief video walks through the process of transitioning from a free trial/registration period to a Silver or Gold membership subscription.
Details on both the Silver & Gold membership options, as well as the free content that will continue to be available going forward can be found under "Membership Options" located under the Resources tab on the main menu (or click here to view).
Additional information on the premium membership options can now be found on the FAQ page (also located on the main menu bar). Click on "Membership" to view only the FAQs related to membership questions.