After its highly anticipated IPO flopped, Wall Street is hoping the social networking giant will deliver something to be optimistic about. — After flopping on Wall Street, Facebook Inc. will get a chance this week to win over investors when it reports quarterly earnings for the first time as a public company.

After its highly anticipated IPO flopped, Wall Street is hoping the social networking giant will deliver something to be optimistic about. — After flopping on Wall Street, Facebook Inc. will get a chance this week to win over investors when it reports quarterly earnings for the first time as a public company.

Facebook didn't offer advertising for mobile devices until two months ago and hasn't figured out a way to make big money on the 500 million people who log in with smartphones and tablets. In a world that's gone mobile, Facebook Inc. has a lot of catching up to do.

Facebook didn't offer advertising for mobile devices until two months ago and hasn't figured out a way to make big money on the 500 million people who log in with smartphones and tablets. In a world that's gone mobile, Facebook Inc. has a lot of catching up to do.

Mark Zuckerberg will celebrate turning 28 today on the final leg of a roadshow aimed at building demand for Facebook Inc. (FB) ’s initial public offering and convincing investors that he can make money from mobile users.

Mark Zuckerberg will celebrate turning 28 today on the final leg of a roadshow aimed at building demand for Facebook Inc. (FB) ’s initial public offering and convincing investors that he can make money from mobile users.

Mark Zuckerberg will celebrate turning 28 today on the final leg of a roadshow aimed at building demand for Facebook Inc. (FB) ’s initial public offering and convincing investors that he can make money from mobile users.

Mark Zuckerberg will celebrate turning 28 today on the final leg of a roadshow aimed at building demand for Facebook Inc. (FB) ’s initial public offering and convincing investors that he can make money from mobile users.