IncGamers'Jeff Hollis looks at the role of the healer in MMO games.
From the article:
"No, the folks I'm referring to are the part-time healers. These are players that chose a class because they enjoy a non-healing aspect of the class, but somehow find themselves repeatedly thrown into the healing role. One of my WoW characters – an enhancement shaman – is a phenomenal DPSer. He's in a full set of PvP gear, in fact. Yet, despite this, I have had the experience of *repeatedly* being called upon to heal."