When Heidi Cohen speaks I listen. Here are her 12 most popular posts of 2012:

For marketers, 2012 was dominated by social media’s evolution beyond its high growth phase, the explosion of content marketing, and the growth of smartphones, tablets and other connected devices. These three trends influenced how we see the world, connect with each other and shop.

We live in a four-screen world where we’re always connected, even in the bathroom!

With a smartphone always within reach to snap and share shots, 2012 was the year of the photo. Further, we now have mobile commerce, couch commerce, social commerce and showrooming.

Here are the top twelve Actionable Marketing blog posts of 2012 as voted for by you, our readers. (If you’re interested, here are the top twelve Actionable Marketing blog posts of 2011.)

Full story at: 2012: Social Media, Content Marketing and Mobile | Heidi Cohen.