WINNERS

JEFF BEZOS

Amazon CEO opens online app store and takes on Apple over trademark name.

JACK DORSEY

Twitter co-founder in talks to return to company.

JEFF WEINER

LinkedIn boss celebrates the Web site’s 100M member as growing company eyes IPO.

LOSERS

CHRIS BROWN

R&B singer throws a tantrum on “Good Morning America.”

BRIAN MOYNIHAN

BofA boss told by Fed the bank can’t reinstate a dividend.

RICHARD ROBINSON

Scholastic Books CEO sees sales drop in post-“Potter” era.