Waterproof, shock-proof and freeze-proof, the PowerShot D20 is built with the active photographer in mind.

ENGADGET: blogger-avatar

Even the new quake-proof span of the San Francisco-Oakland Bay Bridge was built in China and floated over for assembly stateside.

FORBES: Made In Silicon Valley

Hassell and Macaulay built a proof-of-concept for that spoofing attack using a fake sign-in for the Skype Android app.

FORBES: Researchers Show Android Vulnerable To App-Hijacking Attacks

Within a month, one Egyptian developer built a basic proof of concept on a few webpages for Marginize, which streams tweets and other real-time commentary in the right-hand margins of a website.

FORBES: Building a Parallel Web During Egypt's Revolution