Light Chips
Combining optical and electrical circuits should speed supercomputers.
Features
Topics
How to Stop the Snoopers
Getting advertisers to quit tracking you may be harder than you think.
Inventing New Technologies and Markets
Our second annual list of the world's most innovative technology companies highlights businesses whose work is changing industries and lives.
The New Money
Square, founded by the creator of Twitter, lets people accept credit cards with their smart phones. That innovation could transform transactions in surprising ways.
Watching Viewers
Making television smarter requires understanding why it is our favorite gadget.
Three-Way Transistors
A single graphene transistor can do the work of multiple conventional ones.
Tracking Social Spam
Hacked Facebook accounts produce most of the spam on the world's largest social network.
Chaos in TV Land
If you think the future of television is uncertain now, look at the issues the medium faced before it took off.
Serious Games
The online world of Second Life seemed like the next big thing, only to be largely written off. Neither hypers nor detractors understood it.
The New, More Awkward You
Robots that stand in for remote workers could force people to learn how to tolerate a new breed of social failings.
