What I implore you to do is believe that if you make courageous choices and bet on yourself and put yourself out there that you will have an impact as a result of what you do, and you don't need to know now what that will be, or how that will happen, because nobody ever does.

Not only can you not plan the impact you're going to have, you often won't recognize it even while you're having it.

One of the things that amazes me about Twitter is the way it utterly eradicates artificial barriers to communication. Things like status, geopolitics and so on keep people from talking to one another. Those go away in Twitter. You see exchanges that would never happen anywhere else.

I think that content posted to Twitter is distributed to more platforms, services, sites, online and offline than any other services out there. Would love to see if someone can prove to me otherwise.

The Internet is overrated. It's much smaller an innovation than people think it is. I don't think it's changed the way anybody makes music.

Since the advent of the Internet - more recently compounded by blogging - everyone can be a published voice. Any cowardly, anonymous anger-monger can have an audience of thousands. That doesn't make them a journalist any more than my throwing an onion and a few carrots into a pot of boiling water makes me Julia Child.

Our intuition about the future is linear. But the reality of information technology is exponential, and that makes a profound difference. If I take 30 steps linearly, I get to 30. If I take 30 steps exponentially, I get to a billion.

Classroom teachers can play an active role in instructing children about appropriate conduct online, even where there is no school policy on the issue. By promoting public discussion about their lives on the Internet, teachers and students can work together to share advice and develop 'rules to type by' or similar Internet-minded guidance.