Social networking company cites $3.7 bln in 2011 sales.

Company seeks to raise as much as $540 million as investor tally climbs.

Company seeks to raise as much as $540 million as investor tally climbs.

Computer makers board considers firing Apotheker; stock off 47% on his watch.

Computer makers board considers firing Apotheker; stock off 47% on his watch.

Apothekers changes would expand HP's cloud computing, business software.