SAN FRANCISCO (AP) — Facebook's green light for political campaigns to pay prominent social media users to spread their messages is highlighting the difficulties around setting rules for the fast-changing world of online political campaigning.The company's...

NEW YORK (AP) — McClatchy, the publisher of the Miami Herald, The Kansas City Star and dozens of other newspapers, has filed for bankruptcy protection as it struggles to pay off debt while revenue shrinks because more readers and advertisers are going...

WASHINGTON (AP) — Billionaire Michael Bloomberg is doubling the already massive amount of money he will spend on advertising, an effort to lift his Democratic presidential bid and capitalize on the chaotic outcome of Monday's Iowa caucuses.“After...