Mary Catherine is CNBC's San Francisco bureau chief. Prior to that, she was director of social media at CNBC, where she managed the business network's team of social media editors.
Twitter: @mcwellons Google+ : +MC Wellons
Media moguls have descended on Sun Valley for Allen & Co.'s annual confab. For the latest news on the ground, check out our Storify.
Using exclusive data from Twitter, CNBC visualizes Apple's Beats deal in a Twitter heat map.
CNBC's markets reporter Dominic Chu hosted a Twitter chat to discuss the many ways in which social media is impacting the business world.
Cocoa prices jumped 21% in 2013, and global demand is ballooning for this nearly $99 billion commodity. Craving chocolate? It's gonna cost you.
The staggering costs of the Sochi Olympics is a record-breaker. Construction overruns and corruption have inflated the price tag. Is it worth it?
Ben Bernanke left the Fed on a high note Wednesday, cutting the bank's bond buying program by another $10 billion before handing off to Janet Yellen.
Marc Andreessen is back on Twitter after an absence of nearly 3 years, and the venture capitalist has thoughts—lots and lots of them.
A panel of personal finance experts, bankers and professional traders on how the debt ceiling crisis could affect personal investments.
The iPhone 5S isn't the only thing Apple launched on Friday. CEO Tim Cook made his Twitter debut, sharing his pride in the company's launch.