Social darling Facebook (NASDAQ:FB) is set to report earnings this Wednesday. The consensus analyst estimate is for Facebook to report about $1.9 billion in revenue, with earnings per share of $0.18. This would be about 50% revenue growth on a year-over-year basis, most of which will come from growth in advertising.

Investors will have to continue to watch mobile ad growth. Mobile ad revenue accounted for 41% of Facebook's ad revenue last quarter, which helped fuel the massive rally in Facebook shares so far this year. The stock has climbed nearly 90% year to date. Investors should also keep an eye on the total number of monthly active mobile users.

Despite the enormous rally in Facebook shares this year, tech bureau chief Evan Niu believes Facebook still has a long runway for growth opportunities. In this segment of Tech Teardown, Erin Kennedy discusses Facebook's upcoming earnings report with Evan.

Erin Kennedy has no position in any stocks mentioned. Evan Niu, CFA, has no position in any stocks mentioned. The Motley Fool recommends Facebook. The Motley Fool 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.