From iGaming Business – Facebook’s quarterly financial results have been boosted by a surge in mobile advertising at the social networking website. Facebook said that mobile revenues of $656m (€505m) represented 41% of advertising revenues in the second quarter of 2013, which was up from 30% in the previous quarter. Total advertising revenues, representing 88% of Facebook’s total sales, jumped year-on-year by 61% to $1.6bn to generate a net profit of $333m in the three months to June 30, reversing a loss of $157m a year ago. “We believe this rapid growth is driven by our unique ability to target…