Blizzard through Battle.net is offering World of Warcraft starter edition for free. You can play up to 20 levels with the starter edition. If you would like to expand your play with World of Warcraft, you can purchase the full version for $39.99 from the Blizzard Entertainment store or from any of the following retailers;

Blizzard Entertainment
Sears.com
Best Buy

To get your free copy just sign up by following the link below.

https://us.battle.net/account/creation/wow/signup/

No Credit Card Required to Play Starter Edition.

Play World of Warcraft Free!

Platform: Mac/Windows

World of Warcraft: Cataclysm adds plenty of exciting new features to the original World of Warcraft. Two new playable races are yours to discover: the cursed worgen or resourceful goblins. The level cap has increased to 85, so you can develop your characters even more than before. Classic zones across the original continents of Kalimdor and the Eastern Kingdoms have been changed and updated with new content. Explore new areas of the world, including Uldum, Grim Batol and the Sunken City of Vashj’ir. Master a new secondary profession to discover valuable artifacts and earn rewards. New objectives, rated battlegrounds, race and class combinations and achievements will keep you busy in Azeroth and beyond for a long time to come.

Minimum PC System Requirements

PC Processor Type AMD Athlon XP™ 1500+ processor, Intel® Pentium® 4 processor
PC Processor Speed 1.3GHz
PC Operating System Windows XP, Windows Vista
PC System Memory 1GB RAM
PC Hard Drive Space 25GB
PC Video 32MB 3D-capable video card
PC Additional Requirements Broadband Internet connection is required

Minimum Macintosh System Requirements

Mac Processor Type Intel® processor
Mac Processor Speed 1.8GHz
Mac Operating System Macintosh System 10.5.8
Mac System Memory 2GB RAM
Mac Hard Drive Space 25GB
Mac Additional Requirements Broadband Internet connection is required