In its Q4 earnings report, Facebook revealed that sales rose 51 percent to $8.81 billion, above the $8.51 billion average analyst prediction. The bump in revenue is largely attributed to advertising on mobile phones. Also, within the space of a year, monthly active Facebook users increased 17 percent to 1.86 billion people, with 1.23 billion checking daily and 1.74 billion accessing the social network via their smartphones. Facebook has now cemented its No. 2 position in the mobile advertising market behind Google. The company is also making a major move into video content. Continue reading Facebook Eyes Success with Mobile Ads and Focus on Video