Cataclysm Mastery System

A summery.  It's old but is one of the clearest explanations I've found.
http://www.brighthub.com/video-games/mmo/articles/47462.aspx?p=4

WOW Head has the next best explanation here.
http://www.wowhead.com/guide=cataclysm&mastery

Here is WOW Insider's summary of Cataclysm as a whole.
http://wow.joystiq.com/cataclysm

The mastery system link is here.
http://wow.joystiq.com/2009/08/22/blizzcon-2009-mastery-system-and-talent-trees/

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Healer Placement in Battlegrounds

A five part article.
http://www.p-vee-p.com/index.php/battlegrounds/healing-in-battlegrounds.html

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Help for the Brand New WOW Player

Basic advice for the brand new player.
http://www.mmomeltingpot.com/2010/10/help-a-noob-day-wow-new-player-starting-pack/

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Advice for the New Rogue

There is also a link to help lower level rogues level buried in this article for new Level 80 rogues.  I've posted that separately below.
http://samueltempus.wordpress.com/2010/10/01/deckswabber-to-swashbuckler/

http://samueltempus.wordpress.com/2009/03/05/leveling-a-rogue-rogue-101-basic-mechanics/

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Patch 4.0.1's Raid Lock Out System Explained

WOW Head covers the raid lock out system in detail.
http://www.wowhead.com/blog=169667

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Addons, Macros and the Public Test Realm

Addons and macros may not work in the public test realm version of Patch 4.0.1 or in Cataclysm.  Some folks have already started planning ahead.  Here's how to copy your addons and their settings to the PTR.
http://outdps.com/2010/10/03/copying-your-addons-and-addon-settings-to-the-ptr/

Here's how Dreambound's druid macros perform and what changes he plans to make.
http://dreambound-druid.blogspot.com/2010/10/40-and-macros.html

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Kirinia's Outfit of the Month

http://birdfall.blogspot.com/2010/10/outfit-of-month-or-dont-toss-your.html

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