This list is a work in progress and will be updated frequently.
I included some of my personal favorites, as well as shorts that were acclaimed by others, won awards or simply that I feel more people should watch.
I try to keep it varied, so here you'll find animation and live action, conventional and experimental, documentaries and fiction, comedy and drama, and so on. YMMV, but hopefully there's something for everyone here.
Let me know if you come across links that don't work.