Shaman Healing

Finally got my lovely shaman to level 60, so I've reached the Outlands part of the game. Got myself Dual-Specialisations, so now I've got the enhancement and restoration trees covered. I do have 1 problem though...

I am not confident in my healing ability!

So I need your help. Know any good blogs about shaman healing, or just a few pointers of your own?? Please, please, please, please, please (I'm not begging, honest!) help me out. There are so many dungeons and good healers are a rarity. Bad healers, on the other hand, are a dime a dozen. Don't want to be one of those bad healers, oh no!

So Hellfire Ramparts and beyond await my healing expertise. Where do you suggest I get the advice I need??