A Summary of Cataclysm Changes

Sadly, there isn't much hard information on how this all will be implemented.
http://wow.joystiq.com/2010/10/01/wow-rookie-what-is-cataclysm/

Apparently Patch 4.0.1 (which will happen before Cataclysm) will have raid lock outs in Icecrown Citadel and Ruby Sacntum.  Here's how the system will work.
http://wow.joystiq.com/2010/10/01/flexible-raid-locks-in-patch-4-0-1/

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Guide to Halion (Ruby Sanctum) for Enhancement Shaman

Covers both regular and heroic mode.
http://www.wow.com/2010/08/14/totem-talk-enhanced-with-halion/#continued

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Ruby Sanctum Druid Loot

Gear the 10-man and 25-man raids offer for feral and restoration druids.
http://www.wow.com/2010/07/14/shifting-perspectives-ruby-sanctum-loot-for-druids/

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Ruby Sanctum Death Knight Loot

Items to make your DK heart beat faster.
http://www.wow.com/2010/07/13/lichborne-ruby-sanctum-loot-for-death-knights/

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A Halion Tanking Guide

A guide to tanking Halion.  Read the Comments for more tips.
http://www.tankingtips.com/2010/07/09/a-quick-guide-to-tanking-halion1025/

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Ruby Sanctum Walkthrough

The author plays a shadow priest but this seems to be general enough information to help anyone.
http://twistedfaith.wordpress.com/2010/07/02/ruby-sanctum-and-you-dance-puppet-dance/

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Ruby Sanctum is Open

Despite Blizzard's saying that Ruby Sanctum wouldn't be ready until after Patch 3.3.5 hit, it is open now.  Note that several battlegroups are down per Wow Insider.
http://www.wow.com/2010/06/29/ruby-sanctum-is-open-apparently/

Details.
http://www.wowhead.com/blog=161592

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DK Tank Gear, UI, Mods, Macros and PAWN Scales

Today must be Death Knight Day as I have three new good articles for death knights.

First, Pwnwear's site has updated the DK tanking gear list there with the new Ruby Sanctum items that are known.
http://pwnwear.com/forum/tank-gear-list-t142.html#p394

Secondly, Skeleton Jack has changed his UI around and posted a long article about what he uses, why, and why he has discarded certain items.  If you need UI or mod ideas, it's worth a read.
http://www.skeletonjack.com/2010/06/27/skeleton-jacks-mods-and-death-knight-uis/

Thirdly, and most importantly, Skeleton Jack has listed specs and PAWN scale tags for the Frost and Unholy Death Knight flavors.
http://www.skeletonjack.com/2010/06/26/frost-and-unholy-specs-and-ape-weights-and-scales-for-3-3-5/

UPDATE:  Skeleton Jack has added an article about macros that DKs will find very useful.
http://www.skeletonjack.com/2010/06/29/you-need-death-knight-macros/

UPDATE #2 by Skeleton Jack-an article about Tell Me When.
http://www.skeletonjack.com/2010/07/01/tell-me-when-and-invaluable-mod-for-death-knights/

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Preview of Hunter Loot in Ruby Sanctum

http://huntsmanslodge.com/7360/ruby-sanctum-hunter-loot-preview.htm

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Ruby Sanctum Won't Arrive with Patch 3.3.5

The new Ruby Sanctum instance won't be ready when Patch 3.3.5 arrives.  Blizzard's note and WOW Insider's comments here-
http://www.wow.com/2010/06/02/patch-3-3-5-ruby-sanctum-release-delayed/

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Ruby Sanctum Patch 3.3.5 Information Site

WOW Head has started collecting Ruby Sanctum information from the public test site that has gone live.  Here is where they will put it in case you want to browse.  Rumors say that when Ruby Sanctum hits the lead up to Cataclysm will start, so expect earthquakes and other things when Patch 3.3.5 hits.  We are on Patch 3.3.3 now, by the way.
http://ptr.wowhead.com/zone=4987

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Patch 3.3.3 Changes UPDATED

UPDATE #2:  WOW Insider is keeping a list of expected changes to the game from Patch 3.3.3 and updating it as more information comes out.
http://www.wow.com/2010/02/20/patch-3-3-3-ptr-what-weve-seen-in-the-last-24-hours/

Blizzard is announcing upcoming changes to the game thick and fast.  Patch 3.3.3 has a public test realm that is up and running now, or about to be.  I think the link below is where you access the PTR (public test realm).
http://www.worldofwarcraft.com/ptr/

Here is what to expect from it.  Note that the random Battleground system is included in this patch.  You can't use this unless you are wearing a Level 80 character.
http://www.wow.com/2010/02/19/patch-3-3-3-ptr-patch-notes/

A more complete explanation of the changes to Battlegrounds, as well as a list of other changes.
http://mmorpgs.pvpee.com/patch-3-3-3-ptr-notes

Patch 3.3.5 apparently has a new raid called Assault on the Ruby Sanctum.
http://www.wow.com/2010/02/19/assault-on-the-ruby-sanctum-coming-in-patch-3-3-3/

There is going to be some tinkering with Wintergrasp specifically in the "next minor content patch" which I suppose means Patch 3.3.3.  WOW Insider is excited about the mechanics of Wintergrasp which Blizzard explains here.
http://www.wow.com/2010/02/19/wintergrasps-hidden-balance-mechanics-revealed-minor-changes-c/

More details on the Wintergrasp changes.
http://mmorpgs.pvpee.com/upcoming-wintergrasp-changes

Note this about the authenticator from WOWHead's blog entry about the 3.3.3 patch notes--
"Authenticator Frame: If a player has a Battle.net Authenticator attached to his or her account and selects Remember Account Name at the login screen, the next time that player logs into World of Warcraft, a field to input the Authenticator code will be displayed below the password field."

http://www.wowhead.com/?blog=145532

The Auction House will have major changes and there will be profession changes, too.
http://www.wow.com/2010/02/19/patch-3-3-3-ptr-major-changes-to-the-auction-house-and-game-eco/

Changes to the dungeon finder.
http://www.wow.com/2010/02/20/patch-3-3-3-ptr-random-dungeon-finder-changes/

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