Marissa Mayer has promised "not to screw up" Tumblr, the lively blogging site the Yahoo chief executive bought for $1.1bn, as the New York start-up's young founder told its nervous community: �We're not turning purple.

Chicago-based food ordering startup GrubHub is merging with its rival Seamless, creating a company with more than $100 million in revenue and a combined network of more than 20,000 local takeout restaurants across the U.S.

Federal Reserve Bank of Chicago President Charles Evans said the U.S. economy has improved �quite a lot� as the central bank maintains record stimulus and expressed confidence policy makers have tools needed to monitor markets for excesses.

After four months of being grounded, Boeing's 787 Dreamliners are back in the sky, reports CNBC's Phil LeBeau. Carrying 186 passengers, including the Chairmen and CEO's of United Airlines and Boeing, the Dreamliner made an uneventful return to service ...

NEW YORK--Gold and silver futures settled higher Monday as a swift reversal forced bearish traders to close out bets on lower prices.

Mon May 20, 2013 10:04am EDT. May 20 (Reuters) - The following is a list of scheduled U.S. agency bill sales from Fannie Mae and Freddie Mac for 2013.

The yen gained the most in three weeks against the dollar as Japanese Economy Minister Akira Amari said further losses in the currency would have negative effects after it fell to the lowest since 2008 last week.

By Caroline Humer and Ransdell Pierson. Mon May 20, 2013 2:21pm EDT. (Reuters) - Generic drugmaker Actavis Inc, itself a recent takeover target, said on Monday it would buy specialty pharmaceutical company Warner Chilcott Plc for $5 billion in stock to ...

May 20 (Bloomberg) -- Treasury 10-year note yields traded at almost a two-month high before Federal Reserve Chairman Ben S. Bernanke discusses the economic outlook in congressional testimony this week.

More bumps in the road are probably in store for Bitcoin. The virtual currency has seen some massive swings in value over the last several weeks, but that volatility is not likely to end soon, its lead developer suggested on Saturday.