CS183B - Startup Class - Stanford class taught by Sam Altman & guest speakers
Startup Stash - A curated directory of 400 resources & tools for startups
Classroomies - Watch Stanford CS & Startup lectures together
StartupResources.io - Tightly curated lists of the best startup tools
Apply to YC (Y Combinator) - Curated collection of resources for founders applying to YC.
Makerbook - A directory of the best free resources for creatives