As a co-founder of Sand Hill Exchange (http://sandhill.exchange/), we're excited to see many people growing the burgeoning Fantasy VC ecosystem. I like Exchangel's focus on seed stage startups, as I feel this is where the most interesting entrepreneurial energy resides.

Obviously, there are many key differences -- Sand Hill Exchange in particular offers the ability short sell, profit, etc. We'll be spinning up a hacker news league on http://sandhill.exchange/ soon so you can all skip our waitlist!

-- Gerrit Hall Co-Founder, Sand Hill Exchange gerrit AT sandhill DOT exchange