DIATH, I can't get this spreadsheet to be readable on the page... reproduced below.
a. What I thought as a relatively new healer
b. What I think now
1a. When you get aggro, you should run around wildly, screaming, arms flailing to make sure you get the tank's attention
1b. When you get aggro, run towards the tank
2a. When a tank dies it's your fault
2b. Ok maybe I need to pay attention a little more and try harder... but it's not necessarily my fault. It could be tank's fault. ZOMG!
3a. When a dps dies it's your fault
3b. Naughty dps got aggro! (heh sorries dps, we do love you)
4a. A healer's performance is only highlighted or noticed when they do poorly
4b. Great healing is noticed and appreciated by others
5a. OMG someone is standing in fire/hockey puck of death/green poisonous slime, I must heal them!
5b. OMG you iz noob. You no deserve my leet healz. Don't stand there, kk?
6a. Must have big healz!
6b. Big healz are good. But big healz + right timing is even better
7a. Healers should just listen and take instructions
7b. Healers have a great perspective and could provide valuable insight into raid strategy
8a. Good healers just stand back and heal
8b. Great healers tell the tank and dps what they need from them whether it’s a slight positioning or timing change
9a. Good healers react quickly
9b. Great healers are reactive, but also proactive
10a. Healers rock
10b. Healers rock