Best of luck. This is something that will make people's lives better. Unsolicited advice, but I highly suggest following Elad Gil's posts both on what kind of

Best of luck. This is something that will make people's lives better. Unsolicited advice, but I highly suggest following Elad Gil's posts both on what kind of CTO would be good (http://blog.eladgil.com/2010/02/hiring-first-5-engineers-what-sort-of.html http://blog.eladgil.com/2010/02/hiring-first-5-engineers-wha...) and also doing extremely intense reference checks (if it doesn't feel too thorough, you've not reference checked enough) - Elad has a good guide on that too. http://blog.eladgil.com/2013/03/reference-check-candidates.html http://blog.eladgil.com/2013/03/reference-check-candidates.h...