What is new is a remarkably straight-forward sharing tool that creates a unique, private URL for any file or folder.

FORBES: Dropbox Takes On Rivals With New Sharing Tool

Cheap finance is often a better tool for carmakers than a straight rebate on the purchase cost would be, because it helps maintain both the prices of new cars and residual values.

ECONOMIST: The car industry

And here comes Instagram's role: By allowing people to push their images straight into their Facebook feeds (and straight out again as a commercial), Facebook has a unique powerful tool for integrating images in a way that were only dreamed of before.

CNN: What Facebook will do with Instagram