Those who earn the favor of the Argent Dawn will be rewarded. Just like any other World of Warcraft organization, you can improve your Argent Dawn reputation simply by completing quests for them, killing plenty of monsters along the way. Work your way up from the bottom, starting at Friendly and then Honored, finally progressing to Revered, and ending with Exalted status.
You might wonder why your WoW Argent Dawn rep is important. Consider the following reasons:
• The higher your Argent Dawn reputation is, the more items you can buy from the group's vendors.
• You can also gain Insignias of the Dawn and Insignias of the Crusade--the higher your reputation, the higher the discount you will receive. Turning in craftsman's writs is a great way to earn these as well.
• Once you are either Exalted or Revered with Argent Dawn, you can learn recipes for your craft when you find Master Craftsman Omarion in Naxxramas.