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How to hunt down people -- even if they don't want to be found.
Image Match now lets Bing users perform a search using an image rather than a word or phrase.
More militaries and armed groups are using social media as a weapon of war -- but when ground skirmishes are mirrored by cyber-social battles, managing the message can get messy.
What do you do when someone uses a photo of yours without permission? We take a closer look at online copyright infringement, and speak with photographers who have seen their work spread far and wide without credit.
Facebook founder Mark Zuckerberg turns up on newly announced social network Google+ (twice), preceded by Fake Zuckerberg.
TinEye lets you hunt for images.
How do you create an online trivia game when everyone lives on the Web, which has made cheaters of us all.