Dalton Caldwell, Y Combinator partner and founder of imeem and Mixed Media Labs, on how to convince someone to join your startup. Y Combinator invests a small amount of money ($150k) in a large number of startups (recently 200), twice a year. Sign up for our free Startup School here: Learn more about YC and apply for funding here: Looking for a co-founder? Try YC's new co-founder matching platform: