Half of Google's revenue comes from selling text-based ads that are placed near search results and are related to the topic of the search. Another half of its revenues come from licensing its search technology to companies like Yahoo.

With the world's human population now at seven billion and growing and the demand for technology and modern conveniences increasing we can't control all our negative impacts. But we have to find better ways to live within the limits nature and its cycles impose.

The reason is that till date in spite of advances in information technology and strategies of information the written word in the form of books still remains one of humanity's most enduring legacies.

I love technology and I don't think it's something that should divide along gender lines.

Roman civilization had achieved within the bounds of its technology relatively as great a mastery of time and space as we have achieved today.

I'm equally guilty of using technology - I Twitter I text people I chat. But I think there's something strangely insidious about it that it makes us think we're closer when in fact we're not seeing each other we're not connecting.

I love what the Valley does. I love company building. I love startups. I love technology companies. I love new technology. I love this process of invention. Being able to participate in that as a founder and a product creator or as an investor or a board member I just find that hugely satisfying.

There is an enormous market demand for information. It just has to be fulfilled in a way that fits with the technology of our times.

You are cruising along and then technology changes. You have to adapt.

An awful lot of successful technology companies ended up being in a slightly different market than they started out in.