Twitter Inc., leading up to its Nov. 6 initial public offering, faced questions from the U.S. Securities and Exchange Commission about slowing user growth and whether people were losing interest in viewing ads -- the company’s main source of revenue.
Facebook Inc. is putting the brakes on the number of ads that appear within user posts and said that younger teens aren’t using the site as much as they used to, suggesting revenue growth may lose steam.
As Facebook Inc. explores a broader range of money-making businesses, such as video ads and music streaming, it will need to shake off the growing pains that marked its first quarters as a public company.
Facebook Inc.’s success in mobile advertising, which is making it a stronger rival to Google Inc., is also providing a model for other social-networking sites such as Twitter Inc., Pinterest Inc. and Snapchat Inc.
Google Inc. Chief Executive Officer Larry Page disclosed a health condition that can result in hoarse speech and labored breathing, though according to doctors won’t impede him from running the Web-search provider.