SIGGRAPH is behind the times. SIGCOMM has been open access for years.
It's a shame too since SIGGRAPH runs ACM's most popular conference(s) with many thousands of attendees and high registration fees ($875 "discounted" pregistration for a virtual conference? are you kidding?) and can almost certainly afford the negligible costs for digital publication.
Well here's hoping we'll get real open access for everything by ... 2025. ;-/
Until then: google scholar, sci-hub, or donate your $99 to ACM.
