This is a useful little article by left-wing think tank People's Policy Project that summarizes the current wave of grad student unionization and activism, the gains it won in 2023, and its broader place in the labor movement. If someone asks you for a quick primer on the subject, I'd probably link them to this.
a Cohost account about unions
mirroring and keeping a pulse on cool union stuff around the english-speaking (and occasionally non-english-speaking) world. run by @alyaza
Workers of the world, awaken! Break your chains, demand your rights!
Cohost Union News website
alyaza.neocities.org/CohostUnionNews/