The NBA gets a lot of love for all the guys who have embraced social media -- guys like Shaq, Kevin Love and so on -- but the NFL is quickly catching up with some of its guys. Martellus Bennett is often blogged about in this space for his work on Twitter and YouTube. Admittedly I had no idea that the Chargers' Shawne Merriman was such a social media master. He was into MySpace when that was the thing, and he's switched up his game to the world of Facebook and Twitter. (Mashable has a ...