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
Makerbook - A directory of the best free resources for creatives
Apply to YC (Y Combinator) - Curated collection of resources for founders applying to YC.
Freebiesjedi - Discover & download useful freebies everyday