If you don't risk anything you risk everything

More than four million businesses have Pages on Facebook that they use to have a dialogue with their customers.

We are working hard to build a service that everyone, everywhere can use, whether they are a person, a company, a president or an organisation working for change

Google, I think, in some ways, is more competitive and certainly is trying to build their own little version of Facebook.

By giving people the power to share, we're making the world more transparent.

There are a few other things that I built when I was at Harvard that were kind of smaller versions of Facebook. One such program was this program called Match. People could enter the different courses that they were taking, and see what other courses would be correlated with the courses they are taking.

In my experience everyone will have a different view of the right level of tax so governments need to provide clear guidance that conforms to a set of international standards that all governments accept.