Angel

In typical Jason Calacanis style - slightly arrogant, yet genuine - he lays out very clearly how to go about putting your first chips on the poker table: How to start betting on startups as an angel investor.

I found it insightful as a founder/operator myself to gain a better perspective of how difficult the job is of an angel investor - what it is they are looking for in a 100x startup and after investing, how to protect their interests.

A direct takeaway I have is to start keeping a list of startups around me and value / qualify them on their potential. Then in a year's time or so, I check back in and evaluate the accuracy of my business antennae.