The first version of everything is janky.

Being effective at social media, whether for business or personal use, means capturing people who have short attention spans. They're only a click away from a picture of a funny cat, so you have to make your thing more compelling than that cat. And that can be a high bar.

Having ideas and doing them - that's what entrepreneurship comes down to. That's something that makes you not just a great founder who I want to invest in, but also a great employee or someone I want to work with.

Hundreds of these companies I've seen since the beginning stages - including Dropbox and Airbnb - one of them has actually been crushed by an incumbent. The Googles, the Twitters, the Facebooks, they might be someone to acquire you, which is not necessarily a bad position to be in.

If you look now, more than ever new entrants, new upstarts, are able to grow so much faster than they could before.

You can throw - and we've seen plenty of these kinds of companies - millions of dollars in advertising for a website or a service, and in the end if it's not useful no one's going to use it.

Let's do 150 stops. Let's go to 75 universities, and let's spread this gospel of Internet entrepreneurship everywhere we go.