The well-known investor behind the likes of Twitter and Foursquare says venture capital funds have gotten too big.
Germany has decided to pursue ambitious greenhouse-gas reductions—while closing down its nuclear plants. Can a heavily industrialized country power its economy with wind turbines and solar panels?
Siri may not be the smartest AI in the world, but it's the most socially adept.
Local programmers and homegrown business models are helping to realize the vast promise of using phones to improve health care and save lives.
Nokia helped invent the cell-phone business, but those days of technology glory are long gone. Its new CTO has the job of creating the technologies and designs that will help the Finnish company regain its status as an innovation leader.
One writer bristled at the idea that video games might be corrupting her daughters.
High-powered handsets offer few advantages for the developing world.
WikiLeaks wants to undermine states and corporations by interfering with their ability to "think." It may not survive, but its innovations will be imitated.
An advocate for free expression worries that a key Web principle is withering in Washington.
A year and a half after the federal stimulus bill budgeted $80 billion for new energy technologies, the investment is providing much-needed momentum for clean tech. But what will happen when the money runs out?