Facebook Shares Jump More Than 6% After Gifts Launch. (Hooray For New Revenue Streams.)

Well, Facebook shareholders sure like the sound of Gifts. Around Wall Street's close yesterday, the company launched a much anticipated e-commerce initiative that lets Facebook users send real, physical gifts to friends and family on birthdays and special events like engagements and weddings. It gives the company a third business model beyond advertising and payments revenue. Shares have jumped by 6.6 percent today to $21.66. So what could Gifts mean for Facebook's bottom line? Let's do some gue...