World of Warcraft PvP simply means "Player versus Player". One of the core tenets of World of Warcraft is on ongoing battle between the Horde and the Alliance. They have been sworn enemies since times of old and the hatred between them is not going to dwindle anytime soon. That is why WoW PvP is so important to the design and theme of World of Warcraft.
PvP is on a consent only basis. There are certain servers set up for players who like to PvP and for those who prefer not to worry about player vs. player fighting. On the dedicated World of Warcraft PvP servers, players can challenge their opponents to battle. These battle are just to show how skillful you are and you do not gain experience from winning nor are you penalized for losing.
If you want to PvP then there are many great servers to do it on. Or maybe you are looking for some great World of Warcraft PvP movies. Or you are looking for some great WoW PvP guides to help you beat all the other players. If so then the site below is a great resource to check into.