Startup Stash - A curated directory of 400 resources & tools for startups
CS183B - Startup Class - Stanford class taught by Sam Altman & guest speakers
From Startups For Startups - 50+ Hours of curated Interviews & podcasts
How to Acquire More Users - The growth guide used by Y Combinator companies
StartupResources.io - Tightly curated lists of the best startup tools
Velocity.js - Velocity is a JavaScipt animation engine.