Wow Troll opening

Increasing reputation in World of Warcraft is a lifelong process. It's good to start early and do as many quests as you can to raise reputation in the factions you want to target. If you skip all your reputation quests and lower level reputation earning monsters, you will have to do more repeatable reputation quests later on... and these quests can get boring and tedius. This means doing some traveling at lower levels and hitting the other major faction areas.
http://www.uswtorcredits.com/