Scroll down, select a membership category below and then click "next"! This will take you to the account creation page.
You will not be prompted to choose an initial password -- a temporary one will be mailed to your email address when you create an account. You can change the password after the entire application process is complete.
There is a $15 discount for first-time WSRID members. Use Discount Code "WSRID1stTimeMember" at the bottom of the screen where you fill out your contact information. This is available only to first-time members. If you have ever been a WSRID member before, then you are not eligible.