The social network sheds $11 billion in market value as the stock suffers its sharpest drop since LinkedIn's 2011 initial public offering.
The Google business unit of Alphabet generated $21.2 billion in revenue, an 18% increase from a year earlier.
Advertising revenue in the fourth quarter rose 57%, to $5.64 billion, beating analysts' average expectation of $5.15 billion.
The acquisition of video streaming provider Ustream adds a fourth piece to IBM's planned enterprise video offering.
Facebook took down 20,568 posts and other pieces of content that violated local laws in the first half of 2015.
The "honeymoon is over" for new CEO Jack Dorsey after Twitter reports only four million new users and provides a weak fourth-quarter forecast.
The agreement is designed to ease regulators' concerns over the Symphony service's retention of records.
A collection of CFO.com articles and stories published on August 14, 2015.
The content curation platform failed to land additional funding.
Communicating compliance information through social media may make the message loud and clear.