Priest Web Sites.

Just posting a couple priest web sites I visit alot to get more info on my class.

Shadow : www.shadowpriest.com

Healing : www.plusheal.com

also the priest section on elitistjerks.com

if you have others feel free to post here.

Good idea XD

I used to play a Discipline/Holy priest... before rolling Palliate.

Here are some links (I've always referred to elitistjerks.com, myself):

Discipline:
http://elitistjerks.com/f77/t54629-discipline_healing_compendium_v3_1_a/
The Discipline Healing Compendium hasn't been updated since 3.1, but very little has changed for Discipline anyway.

Shadow:
http://elitistjerks.com/f77/t84746-shadowpriest_theorycraft_3_3_edition_i_get_little_help_my_friends/

http://www.ensidia.com/forum_topic.php?forum_id=36&topic_id=29927&post_id=384535

Holy:
http://elitistjerks.com/f77/t83203-wotlk_healing_compendium_v3_3_arthas_downfall/
Note that the WotLK Healing Compendium contains information for both Holy and Discipline, however it is mostly for Holy Priests.

http://www.ensidia.com/forum_topic.php?forum_id=36&topic_id=28845
http://www.ensidia.com/forum_topic.php?forum_id=36&topic_id=28846
A two-part guide.

Shadowpriest.com is the best site the only one I use. Helped me a lot when I came back to the game.

Yeah I don't really even look at EJ for Shadow Priests, as shadowpriest.com is far superior in all honesty