How big is a billion users?

Oct 29, 2014
Mark Zuckerberg says it's the benchmark for turning Facebook's products into meaningful businesses.

What a billion dollars buys you this week

May 30, 2014
There have been a lot of billion dollar deals in the past couple days.

MID-DAY UPDATE: Egypt stock markets reopen, more water warnings in Tokyo

Mar 23, 2011
Tokyo health officials said today radiation levels are higher in the water supply there. Those officials are recommending people not give tap wat...