Two weeks ago, we wrote a post that was an internal case study of sorts, examining six ways to leverage a Facebook cover photo. We highlighted recent cover photos that we rotated on our page during the past couple of months, each with a different call to action or announcement. (If you weren’t aware, Facebook recently changed the rules about text and cover photos, which is what motivated us to do this experiment.) We thought it would also be helpful to highlight what other social media experts and brands are doing. Here are a few examples we’ve seen lately.