“When is the best time to raise money for my new business?”

Fast Company asked me to answer the following reader question:

Hello, I’m building a social media site. It’s a big project, but I’m holding my own. I’m leaving my full-time job next month to work on it full time. Should I wait until I get a sizable amount of users and wait until I’m pushed for growth and then raise funding, or should I play it safe and raise some beforehand?

Thanks
A. Hutchinson

Here’s my answer on the Fast Company site.