The GryphLife site is the official UofG site for their clubs and events going on throughout the year. This will also showcase the events that are being hosted during O-Week, so make sure to check up on there regularly.
Their Events page lists all the events going on throughout campus and even allows you to narrow down your search to if you want freebies or if you are looking for Spiritual and Athletic events
Their Organizations page showcases the clubs and organizations here at UofG