Warsong Gulch and the Resto Shaman.

So I have read a number of strategy guides discussing how to win at each BG. I have nothing better to add to that. What I'll do is discuss each battleground as it pertains to the resto shaman.
The resto shaman is a powerful BG healer. We have incredible survivability and combined with totems and a great set of healing spells, we are a force to be reckoned with.
Step 1- Sounds silly but make sure you have Earthliving on your weapon. Many is the time I have gone through a battle with flametongue still on.
Step 2- In WG I usually start with earth shield on myself. In WG I always heal the flag carrier. You should too. It should be your sole purpose. Of course throw some heals around as you are doing so, but the flag carrier is your focus. Keeping earth shield on myself until someone picks up flag keeps me alive. Once someone picks up flag, put earthshield on them. The amount of healing from this spell is awesome and it can save you fc's life. As you can only have earthshield on one target, put water on yourself. Mana generation is your friend. If your fc is dead or not in range (and you haven't applied it to them yet) keep earthshield on yourself. A dead healer is a useless healer.
Step 3- Totems. You have a lot of choices. In WG i tend to favor the pvp type totems. Earthbind is usually my first choice. Slowing down your opponents is very useful. For fire I usually go with searing. I don't find myself lacking in healing power so I usually go with searing totem for the disruptive quality. However, flametongue is certainly a viable option. For water you can go with healing or mana. Both are useful. In long battles, mana is very helpful. Don't forget to have your big mana totem on your action bar so you can pop it when mana drops too low. The cleansing totem is a nice alternative too if you have a lot of rogues against you. I typically go with my wrath of air totem for the haste although being able to pop a grounding totem here and there is nice (to absorb enemy spells). I usually keep the totems that I like to pop at opportune moments right there on my action bar. That way I can drop my pre-sets and then change as needed.
Step 4- Spells. For me, riptide and lesser wave are my bread and butter. Riptide is great because of the substantial instant heal and some pretty decent HoT as well. Lesser healing wave I use alot because of the quick cast time. If I'm getting nailed and I need to get out quick relatively potent heals, LHW is the way to go. Particularly in WSG. By the time you cast CH, your flag carrier is out of range already. Chain heal is an awesome spell. And if you can stand back and the other team is foolish enough to ignore you, CH is the way to go. You can throw heals around to multiple people right in the heat of battle. If your opponents catch on to you, you will be interrupted every time you try to cast, so at least LHW is a much shorter cast time. At some point you may be stuck in a relatively static battle (defending your FC in your base for instance) and chain heal works great. But, again as you are healing the FC on the run, riptide and lhw are the way to go. Anyway, keybind all three spells and figure out what works best for you.
Step 5- If you don't already have clic/grid or healbot or whatever healing add-on you choose, get it. Now.
Step 6- Non-healing spells. I keep hex and frostshock close by at all time. They are great to slow down pursuers or to get someone off you FC or yourself. Damage is not your goal, but distraction is nice!
Step 7- Follow the FC. Make sure earthshield is up all the time. Hit riptide when it's up. LHW as needed.
That's all my brain is allowing me to write at this time. I'm sure I have forgotten a number of good tips but...meh. Feel free to add any of your own! Up next...Arathi Basin.