Startup School - How to start a startup, by Y Combinator
Find A Maker - find a partner for your next project
Co-founder's Daily Journal - One of the key issues founders are struggling with is co-founder conflict.
Findnlink - Find people to work with on your ideas.
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.
Founders Nation - Find or become a startup cofounder