Many marketers have a bit of a love-hate relationship with social media. While it unboubtably creates awesome and innovative marketing opportunities, it is also incredibly hard to measure social media ROI. Social media and marketing go hand-in-hand, so if you don't have a social media marketing strategy, there's no time better to get started than the present!Regardless of your feelings towards social media, one trend is clear; it's not going anywhere anytime soon. Spend for social media contests have continued to grow +25% year over year since 2009 (Forrester). With that in mind, we've compiled some key statistics to help you stay caught up on the social media landscape as we begin 2015!