Mobile will be huge but you shouldn’t forget desktop. Most transactions start on mobile and finish on Desktop. In terms of social media, I think Facebook, Twitter and all other social media platforms should play a part in your digital marketing efforts in 2015 but not be your bread and butter. You should never rely primarily on someone else’s network, as someday it may be gone.
In 2015, I think Google will start paying a lot more attention to on-site metrics. CTR, bounce rate, time on site, intent, etc. will play a much bigger impact on your ranking in the SERPs.
