Dive summary: 

• A survey from Ad Age and CITI of 701 marketers and media executives reveal that 61% of brands are investing in Facebook advertising in 2013, up from 55% in summer of 2012. [see full infographic at Ad Age] 
• The adoption rate for new Facebook ad offerings, like "sponsored stories" and Facebook's Ad Exchange, had low adoption rates, even with the increase of ad buys overall. 
• The focus has turned to Facebook's mobile ads with 69% of marketers saying it is "somewhat" or "very important" to their strategy.

From the article: 

"Fast-forward to January 2013: We asked a new crop of 701 marketers and media execs their views. You'd expect sentiment to have risen a little, and it has: More marketers on Facebook say they're also advertising—61%, compared with 55% seven months earlier. We also found a slightly higher percentage that said their Facebook ad budget would "modestly" or "significantly" increase, 58%, compared with 56% in our earlier survey."