SIB on Stage: ProSIBition PartyThis part of the SIB-Groningen website is only accessible to members of the association that have created an account on this website. You can log in below. If you’re not a member of the association, you can sign up to become one. Username Password Remember? Lost password? Register Can’t login? Try this page.If you have just created your account, it could be waiting for approval by the Secretary. You’ll receive an email once this is done.