Usage during a recent disaster highlights features that make the service so compelling.
Creator of the popular reading app Marco Arment on how he's managed to avoid angering the New York Times - so far.
An Apple engineer discloses how the company's premier recommendation engine parses millions of iTunes libraries.
A startup aimed at tracking live events on the Web unveils its product.
Facebook promises to respond to user criticism, but it remains to be seen how far the company will go.
Bartz defends her company's direction in a combative interview.
The famous venture capitalist, John Doerr, outlines his vision of the next wave of change on the Internet.
Executives also poked fun at rival Apple at the company's annual developer conference.
Scientists show how the social network could be mined for e-mail addresses.
An unprecedented analysis reveals that the micro-blogging service is remarkably effective at spreading "important" information.