Nonrigid, lighter-than-air blimps have long been used as slow, steady observation posts. A new generation will watch the seas for drug smugglers and illegal immigrant traffic.
Four alternatives to Google for finding answers online.
Column: Amazon wants to corner the textbook market. But don't think it's gonna be easy.
E-readers improve. Features grow. E-book sales explode. And the next phase of reading comes into view.
Sunspot cycle beginning in 2012 may put satellites, power grids at risk.
We've already got an algorithm picking the current day's top news. Why not one for stories we might have missed?
Mobile location tracking lets you see where your friends are. But what about privacy?
Beijing woos some of its best expatriate scientists. US should act, some say.