Over the past 10 years, social networking has made amazing progress and for industry giant Facebook (NASDAQ:FB), the No. 1 priority has been about building up a massive user base. However, with more than 1 billion users and counting today, now it's all about engagement -- making sure that the users they have keep coming back for more.

How'd they do?
For its most recent quarter, Facebook defied the naysayers yet again with impressive top-line growth of 71%, which resulted in an almost tripling of the company's bottom line. And while the market was initially impressed with the numbers, the stock is actually down a bit since the report. But for Foolish investors who take the long view, there is plenty to like about where this company is headed.

Remember these numbers
If you take one thing away from Facebook's most recent quarter, it's these two numbers: 802 million and 609 million. These are the numbers of daily active users and mobile daily active users, respectively, and are signs that Facebook's engagement strategy is working.

Growth in daily active users is up almost 21% from the same quarter a year ago, and mobile is even more impressive with 43% growth. The fact that 802 million Facebook users check in on a daily basis is staggering. And considering that mobile advertising revenue accounted for 59% of total advertising revenue for the quarter (up from 30% a  year ago), it's plain to see how important the mobile frontier is for Facebook. The slides below from the earnings presentation tell the story:

Fb Daily Slide

Fb Mobile Slide

Source: Facebook

Less than enthusiastic
The market's short-term, muted reaction to the results could be the product of anything, really. Facebook shares aren't what you would call cheap by traditional metrics. And the company also plunked down a lot of money in recent acquisitions of WhatsApp and Oculus. The lack of clarity as to what they're going to do with those purchases adds a little uncertainty to the mix.

But here's something to keep in mind: Mark Zuckerberg is just getting ready to turn 30 years old, and Facebook is likely to be a decades-long story. So while it's easy to get sucked into the short-term noise with any investment, do yourself a favor and stretch your investing timeline out with this one. Facebook is only 10 years old this year. I have a feeling this story has only just begun.

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Jason Moser has no position in any stocks mentioned. The Motley Fool recommends and owns shares of Facebook. 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.