In the top right corner of this website is the login area. Type in your full business email address in the "Email" box. Your "Password" is your FIS Client ID followed by the word "user" (example: SPSuser). You can change your password in your personal profile after logging in.
Logging in gives you access to protected membership menu items as well as allows you to contribute to blogs and forums. Have fun!
More information here about managing your site's account.
Once you have logged in, click on 'View Profile'. You will see a button for renewing your membership for the upcoming renewal period. As you go through the entry screens, you will have the option of making your payment online, or issuing an emailed-invoice to you for manual payment.
You can join online by going to the Member Application and filling out the form. You will have the option to pay by credit card through PayPal or you can send your registration fee to 702 Mangrove Avenue, #301, Chico, California 95926. Please allow a few weeks for processing if you choose to mail your registration.