I watch my YouTube videos over and over.

We are all amateur attention economists, hoarding and bartering our moments - or watching them slip away down the cracks of a thousand YouTube clips.

Downloading and Web 2.0 have famously led to new ways of accessing culture. But these have tended to be parasitic on old media. The law of Web 2.0 is that everything comes back, whether it be adverts, public information films or long-forgotten TV serials: history happens first as tragedy, then as YouTube.

Technically, web browsers can control what users see, and sites using Javascript can overwrite anything coming from the original authors. Browsers heavily utilize Javascript to create an interactive Internet; sites like YouTube, Facebook, and Gmail could be crippled without it.

I hope to do YouTube until the day I die.

I think YouTube has destroyed the genre barrier. People can be into Justin Bieber and Eminem at the same time. It's a good thing.

I woke up, I studied YouTube, I studied videos, I studied film-making, I went to bed and that was my life.

I watched pretty much every coming out video on YouTube that has ever been posted; I watched it in between 14 and a half and 15. Those coming out videos, and those people on YouTube, those brave, brave, brave people on YouTube, without them, I don't know where I'd be.

I can't envision a world where I'm not making YouTube videos. In a perfect world, I live and breathe this, working 12- to 15-hour days until I die.

I have always wanted to learn the piano, but because I travel so much, I can never get any consistency of lessons. So everywhere I go, if I can find a piano, even if it is in the lobby of a hotel or something, I go on YouTube and pick some songs to learn.

They're a different generation, those kids; kids that are under the age of twelve. They're not that impressed by rock music, you know what I mean? They're like, it's cool and everything, but whatever. They're just as impressed by YouTube.

I always believed in the YouTube community and myself. I saw something there. The most difficult thing was others not believing in me. I had a lot of friends in Los Angeles who really thought I was crazy for leaving a steady acting job to start on YouTube.

During my training, we had monthly assessments. It was my first time doing makeup by myself, and I did not even know how to draw on the eyebrows. Since then, I started to look for makeup related videos on YouTube and naturally became more interested.

YouTube's algorithm doesn't know what's going on in the world.

The literary world has to compete with YouTube, Instagram, PlayStation, Xbox, Hulu.

I would sit in class, and I would just cry. Like I don't even know why. It wasn't my school's fault. It wasn't anyone's fault. I just didn't like the environment. I totally had too much on my plate. At this point I wasn't even doing YouTube yet, mind you.

YouTube began as a failed video-dating site. Twitter was a failed music service. In each case, the founders continued to try new concepts when their big ideas failed. They often worked around the clock to try to overcome their failure before all their capital was spent. Speed to fail gives a startup more runway to pivot and ultimately succeed.

My fans were the ones who discovered me on YouTube. I don't ever want to forget that.

There is a saying that if you get something for free, you should know that you're the product. It was never more true than in the case of Facebook and Gmail and YouTube. You get free social-media services, and you get free funny cat videos. In exchange, you give up the most valuable asset you have, which is your personal data.

Yeah, so I have, like, a YouTube channel where I kind of use my engineering background to make sort of ridiculous things.