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Strategically Placed Obstacle Near an Exit Can Speed Evacuations

Taking a Dim View of Solar Energy

Computer Hacking Made Easy

Has Google Found a Stairway to Heaven in Brooklyn?

Cyberwar - U.S. Weighs Risks of Civilian Harm in Cyberwarfare

Yahoo Got a Great Deal, Says Microsoft’s Ballmer

Microsoft-Yahoo: A Rival for Google?

Tips For Keeping It Real On Twitter

Keep Track Of Your Twitter Followers And Have A Clean Inbox In Gmail