For much of its existence, design was all about convenience. We wanted to hide technology so that users are not distracted into thinking about the tools they use.

As befits Silicon Valley, 'big data' is mostly big hype, but there is one possibility with genuine potential: that it might one day bring loans - and credit histories - to millions of people who currently lack access to them.

I used to work for an NGO called Transitions Online, and I was their Director of New Media. I was a very idealistic fellow who thought that he could use blogs, social networks and new media to help promote democracy, human rights and freedom of expression.

My hunch is that people often affiliate with causes online for selfish and narcissistic purposes. Sometimes, it may be as simple as trying to impress their online friends, and once you have fashioned that identity, there is very little reason to actually do anything else.

There is no doubt that the Internet brims with spamming, scamming and identity fraud. Having someone wipe out your hard drive or bank account has never been easier, and the tools for committing electronic mischief on your enemies are cheap and widely accessible.

With the internet we are facing more or less a very similar story. It does offer virtually limitless access to entertainment and for many people living in extremely depressing conditions in authoritarian states, it does provide a vehicle for getting by. For many oppositional movements, the internet, while providing the opportunity to distribute information more quickly and cheaper, may have actually made their struggle more difficult in the long run.

I'm not on Facebook. I have a sort of anonymous account that I check, like, once every six months every time Facebook rolls out a new feature.