The more you enter, the more you become locked in. Your social-networking site becomes a central platform - a closed silo of content, and one that does not give you full control over your information in it. The more this kind of architecture gains widespread use, the more the Web becomes fragmented, and the less we enjoy a single, universal information space.

When something is such a creative medium as the web, the limits to it are our imagination.

We shouldn't build a technology to colour, or grey out, what people say. The media in general is balanced, although there are a lot of issues to be addressed that the media rightly pick up on.

I'm very aware there are lots of other people who are just bright and working just as hard, with just the same dedication to make the world a good place.

The more you enter, the more you become locked in. Your social-networking site becomes a central platform - a closed silo of content, and one that does not give you full control over your information in it. The more this kind of architecture gains widespread use, the more the Web becomes fragmented, and the less we enjoy a single, universal information space.

Customers need to be given control of their own data-not being tied into a certain manufacturer so that when there are problems they are always obliged to go back to them.

Software companies should take more responsibility for security holes, especially in browsers and e-mail clients. There are some straightforward things the industry should be doing right now to fix things, and I don't know why they haven't been done yet.