Facebook unveils a video chat feature.
And the social network now has more than 750 million members.
PC Magazine breaks down what you need to know about Verizon's new tiered data plans.
Does banning cellphones reduce car crashes? A top highway safety group says it's too soon to tell.
Official in Europe are still chasing the "hackivist" group Anonymous.
ICYMI: More on President Obama's first Twitter town hall.
Hackers stole personal information from Silicon Valley technology museum.
Was North Korea conducting cyberwar drills?