While the event is by invitation only, it could be watched live. The startupschool 2013 videos are available here on youtube. Checkout the impressive speaker list, and a casual overview of what they said:
This is a pretty awesome casual summary, though casual.
Chase Adam | Founder, Watsiunusually successful talk by founder of first non-profit at Y Combinator. Business + Tech applied to non-profit in providing health care
Nate Blecharczyk | Founder, Airbnbtalks about exponential growth and handling exponential growth
Ron Conway | Partner, SV Angeloverview of fundraising, paperworks, financial backbone of startups
Chris Dixon | Partner, Andreessen Horowitz; Founder, Hunch, SiteAdvisor
talks about ideas and how to find winning ideas
Jack Dorsey | Founder, Square, Twittergets personal and talk about how to use philosophical wisdoms in literature and non-fiction to get by tough times in startups
Diane Greene | Founder, VMWarethe early founding of VM and getting the process right
Phil Libin | Founder, Evernote, CoreStreetgets personal talks about tough times at Evernote, building lifetime epic work in startup
Dan Siroker | Founder, Optimizelythe philosophical algorithms of founding companies and getting it right through feedback loops
Balaji Srinivasan | Founder, Counsyl; Lecturer, Stanfordphilosophical examination of new tech utopia, as the backbone of US economy and "political exit"
Mark Zuckerberg | Founder, Facebook
gets personal and talk about early startup years of Facebook, and hacking building constantly in Harvard