If you do not have a ShutterShare account go to shuttershare.io and click Sign Up in the top menu.
You will be able to create an account using your email address, or with a Facebook or Google account.
After you sign up you will be required to verify your email address, as well as other account information.
A verification email will be sent to your email to fully verify your account.
After that it's time to get listing and renting :)