Social media was supposed to usher in an age of digital democracy. But savvy politicos find it a tool for manipulating voters.
A letter from the Congressman
An expert projects gubernatorial races based on nonverbal communication in debates
Like Google Flu Trends, but in disaster areas, can Twitter help doctors predict the outbreak of infectious diseases?
It took 10 million tweets, but researchers have built a mood index that can accurately determine market activity
If Digg is looking to save its reputation, hosting ads by BP America probably won't help
The "Some Like It Hot" star, who died this week, had a second career as a painter
A specialized question-and-answer site allows thousands of top-notch math researchers to collaborate
As season 5 opens, America's favorite serial killer may be closer to insanity than ever
A conversation with writer Robert Kirkman on the resurgence and future of comics
The space agency plots a course to the heart of the solar system