Keeva at Tree Bark Jacket blog has posted one of the most comprehensive guides to playing a Resto Druid I've seen yet. This extensive guide covers just about everything a Resto Druid needs to know: talent specs (below the haste cap, over the haste cap, raid healing, tank healing, 5-man healing), explanation of Druid talents, overview of healing spell types, healing rotations (raid healing, tank healing, 5-man healing), stats to look for on gear, gems, glyphs, idols, trinkets, consumables, enchants, addons, macros, keybinds and leveling guide. You getting the idea? Current as of WoW Patch 3.3.3.
[Resto 3.3.3] Comprehensive Resto Druid guide
[Resto] Intro guide for new Restoration Druids
Alison Robert at WoW.com has posted an extensive guide for everyone who has switched to Resto spec and want to know the basics. She covers stats, specs, gears, gems, glyphs, enchants, strength and weaknesses.
Restoration and Moonkin Druid gear from Icecrown: Crimson Halls
Lissanna at Restokin has a list of caster druid gear from the newly released Crimson Halls raid zone. She breaks it down by haste/spirit, haste/crit and crit gear from The Blood Princes and Blood Queen Lana'thel.
Using Rawr for Resto Tree Druid gear lists
The Rawr program is usually used by feral druids to find optimal gear configurations, but Lissanna at the Restokin blog has posted a guide to using Rawr for Resto gear lists as well. She goes over the various modifications you must make to the stat weighing to get results that are accurate for your Druid.
Haste gear from ICC-10 for Resto Druids
The Dreambound druid blog lists the haste gear the drops from the 10-man Icecrown Citadel raid from Patch 3.3. Emblem of Frost gear is also listed as it is sometimes superior to dropped loot.
Haste staff gear list for Resto Tree Druids
Lissanna at the Restokin druid blog lists WoW Patch 3.3 staff choices for Resto Tree druids looking to get haste capped for raiding. She covers ICC-25, ICC-10, ToC and Ulduar drops and a few 5-man drops.
Resto Tree Druid raid healing guide for Icecrown Citadel: haste, glyphs and talent spec
Guest poster Epiphanize at World of Matticus begins a series on Resto Tree Druid Raid healing in Icecrown. In part one, he covers the importance of Haste over Crit, the new Glyph of Rapid Rejuvenation and gives recommendations of a new healing talent build.
Resto Druid gear list for Patch 3.3 ICC 10-man raiding
The Hots and Dots blog has created a list of healing gear for Restoration Tree Druids who casually 10-man updated to include Patch 3.3 Icecrown. The list includes drops/rewards from ICC 10-man and some older 25-man raids (Onyxia's Lair, Coliseum, etc.)
Resto Druid and Balance Moonkin gear stat guide
With the advent of dual specs, many of us are looking at leather drops and trying to figure out which spec it's good for. Lissanna at the Restokin blog goes through the major stats on druid spellcaster gear and points out what to look for in terms of hit, haste, intellect, spellpower, etc.
Druid idol guide for all specs for WoW Patch 3.2
The Altosis Druid blog posts a round up of Druid idols for all specs current up to WoW Patch 3.2. He gives recommendations for each and shows you how you can acquire the high end ones without raiding.