Recently I’ve been playing a NE Druid, El. I find that I really like the versatility of the role and that when I run low on mana, I can go all animal for a fight. It’s a much more interactive role than my hunter, Kurn. The thing is that with all these abilities and animal forms, there is much to learn and even more that is not told in-game, or on the Blizzard site.
Fortunately, Azoth has posted a long and very helpful FAQ on the blizzard Druid forums.
It provides some of the most complete explanations for how item buffs affect animal forms in combat and suggests best uses for the animal forms. It also features very nice explanations for skills and spells.