You can always find out when the next event is by looking in the upper right (right of the car picture) at the next events module. The top entry is solo (signified by the orange cone outline that you can also see in the SCCA Solo logo). Below that is drifting with a D symbol, Club racing with a checkered flag, rally cross with a road sign, and the members meetings with a gavel.
Also, on the right there is the PanAm Events section, and if you click on SCCA Solo Series you will see the full listing of events (that is also the way you register online, by going to the event in question, scrolling to the bottom and selecting 'I will attend this event'. Hopefully soon I will be able to make the next events link to the event info page to resgister people.