Mobile, First Quarter | featured news

Facebook was once a darling of investors, then a turnoff. Now, a year after going public, the social network seems to have settled into a more stable relationship with Wall Street. But the company has still been taking pains to prove that it can make more money from its base of more than a billion users, especially from those using Facebook on mobile devices.

Moody's ratings agency downgraded Nokia's debt grade to near junk status on Monday, citing a sharp decline in first-quarter cellphone sales that led to a 35 percent fall in revenue.