It's looking like 2013 could go down as the year that social networking giant Facebook (NASDAQ:FB) proved its doubters wrong.

In the first half of the year, Facebook's share price languished in the hangover from its botched IPO, and uncertainty around the potency of Facebook's user-monetization strategy. However, thanks to some rather serious momentum from its budding advertising business, especially on mobile, Facebook's stock took off like a rocket toward the second half of 2013.

Source: Facebook

And if recent news suggests anything, it appears that Facebook has no intention of slowing down any time soon.

Facebook's latest billion-dollar opportunity
This week, news broke, once again, that Facebook had begun testing the use of video advertisements for users' news feeds. This is significant for a number of reasons.

Perhaps most importantly for Facebook investors, this move could potentially begin to steal advertising share from television, which is a $60 billion industry each year. This move would also allow Facebook to play catch-up by adding an advertising feature that other names like Google and Yahoo! use, as well.

In the video below, tech and telecom analyst Andrew Tonner examines the possible move from Facebook, and what investors need to know about this key storyline.

Fool contributor Andrew Tonner has no position in any stocks mentioned. Follow Andrew and all his writing on Twitter at @AndrewTonnerThe Motley Fool recommends Facebook, Google, and Yahoo!. The Motley Fool owns shares of Facebook and Google. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.