Mitt Romney worked to lock up the Republican presidential nomination in a Pennsylvania campaign swing Monday that also served a general-election purpose: Debuting a potential running mate—Florida Sen. Marco Rubio.

Jana Partners late Friday disclosed owning nearly 12% of Barnes & Noble, causing the book-sellers shares to jump Monday.

Wal-Mart said it will nominate a Google executive, Marissa Mayer, to its board, bringing in a person with technology and Internet experience while the retailer battles threats from e-retailers.

After getting rebuked by the Fed when it previously asked for permission to increase the dividend or buy back shares, Citigroup is weighing whether to try again.

If you want to own your own top-level domain you have until Friday to submit your application (along with the $180,000 fee). Once the deadline passes, that is it for the foreseeable future.

GDF Suez and the independent directors of International Power said they reached an agreement on the terms of a cash offer at 418 pence per share, well above the 390 pence GDF Suez initially indicated it would pay.

Rates for the top quarter of law-firm partners rose 4.9% last year to $873 an hour, while those for the bottom quarter rose just 1.3%, widening the gap in the corporate legal market.

A review of first-quarter fundraising reports filed through Sunday showed that Republican candidates in many of the closest races have raised more money and have more funds in the bank than their Democratic opponents.

A review of first-quarter fundraising reports filed through Sunday showed that Republican candidates in many of the closest races have raised more money and have more funds in the bank than their Democratic opponents.

A review of first-quarter fundraising reports filed through Sunday showed that Republican candidates in many of the closest races have raised more money and have more funds in the bank than their Democratic opponents.