Here are today's top news headlines from Fool.com. Check back throughout the day as this list is updated, and follow us on Twitter at TMFBreaking.

Merck Lowers 2013 Guidance

Chesapeake Sells Mississippi Lime Assets to SemGroup

Manufacturing Growth Hits New 2013 Low

Vehicle Sales Slump 2.3% in April

ECB Cuts Benchmark Rate to 0.5%

Buffett Says Women Key to Nation's Prosperity

Intel Names COO Brian Krzanich as New CEO

Royal Dutch Shell CEO to Retire Next Year

Obama Taps Pritzker, Froman for Economic Jobs

Huntington-Ingalls Wins $487 Million Coast Guard Cutter Contract

Reactions to European Central Bank Rate Cut

McGraw-Hill Education Apologizes for Online Test-Taking Problems

Kellogg's Cereal Quandary: Luring Back Adults

Berkshire Subsidiary Wins Big Pentagon Contract

Shareholder Rejects Stillwater Mining Settlement Offer

Oil Drilling Technology Leaps, Clean Energy Lags

Initial Jobless Claims Drop 5.3%

Metals, Energy Futures Bounce Back

U.S. Q1 Productivity Rises 0.7%