Startup School - How to start a startup, by Y Combinator
The Y Combinator Database - The definitive database of YC companies with all the metrics
Co-founder's Daily Journal - One of the key issues founders are struggling with is co-founder conflict.
Co-founder Question Cards - Questions to ask your co-founder to know each other better.
Y Combinator Companies - Interactive list of all 1000+ YC companies
Indiegogo - As the largest global site for fundraisers, Indiegogo helps individuals, groups and non-profits raise money online to make their ideas a reality through crowdfunding. It's easy to start fundraising today.