Many spammers pummel online databases with thousands of requests in an attempt to build up files on users.

BBC: The leaky net

For the next several months, CNN will follow four Bauder students as they build their case files in the Levy and Holloway investigations.

CNN: Students try to crack famous cold cases

And their permanence allowed the campaign to develop vital local insight: to build detailed voter files on potential supporters, field test the best ways to motivate them, and push them to cast their votes weeks before Election Day.

CNN: Analysis: Obama won with a better ground game

If hundreds of files are required to build a web page across dozens of domains, Silk can request all of this content simultaneously with EC2, without overwhelming the mobile device processor or impacting battery life.

ENGADGET: Amazon Silk browser spins a faster mobile web, courtesy of cloud servers (video)

Oh, and Dell still hasn't made good on its purchase of Zing and its plans to build an all encompassing media ecosystem to manage your audio and video files across PCs and mobile devices.

ENGADGET: WSJ: Dell "preparing a move into cellphones as early as next month"

Kissmetrics was inserting supercookies into users' browser caches and into files associated with the latest version of the standard programming language used to build Web pages, known as HTML5.

WSJ: Latest in Web Tracking: Stealthy 'Supercookies'

Apps with table views in their nib or storyboard files, and that were built using previous versions of iOS 6 beta, will require a clean build with beta 3 and newer.

ENGADGET: Apple seeds iOS 6 beta 4 to developers: here's the changelog