In the battle for Azeroth, certain territories have become focal points for conflict between the Horde and Alliance.
Battlegrounds represent key locations where this struggle has escalated into all-out war. Each battleground presents a different challenge and environment, and victory here must be achieved not through sheer numbers, but through strategy, skill, and grit.
The Original Battlegrounds are: Eye of the Storm, Alterac Valley, Arathi Basin and Warsong Gulch. To learn more, visit:
http://www.worldofwarcraft.com/pvp/battlegrounds/
Raids of up to 40 people can fight powerful monsters, wage war in player vs. player battles, and work with others to share loot, experience, and quests in raid dungeons. Raids allow you to venture into the most dangerous areas and overcome the pinnacle of challenges in World of Warcraft. Defeating monsters while in a raid group grants substantially less experience than while in a normal group. However, enemies in raid dungeons also tend to yield significantly more experience per monster than normal monsters.
A raid group shares a chat channel, experience, loot, instances, and raid quests. At the same time, the raid is subdivided into 5-person groups. You will always be assigned to one of these 5-man groups, initially by simply joining the raid which will automatically assign you to a group.
More tips on Raids are at:
http://www.worldofwarcraft.com/info/basics/raidtips.html- ED