What the Internet is great at is building networks.

Every major communication tool on the Internet has spam and abuse problems. All email services, blogging services and social networks have to dedicate a significant amount of resources and time to fighting abuse and protecting their users.

Most of the great businesses of our time have experimented. Like Google.

If you look at the Internet, the vast majority of start-ups are not successful. But the ones that are, are very very successful. So you can't point to the unsuccessful ones and say, 'There's no hope for this field.' It's just that they had the wrong idea or they had bad execution.

The information superhighway is littered with so much roadkill.

This could have a chilling effect on how people use the Internet.