World of Warcraft Dungeon & Auction House Tips

Blizzard's official World of Warcraft community website has been updated with two new information pages - one for "dungeon tips" and the other for "auction house tips". Here's a bit about splitting loot:
Make sure the party is aware of the looting rules at the beginning. There are several options such as /random 100, need before greed, and so on. Establish the rules before the items stop dropping.

Typically, the highest-quality equipment and weapons can be found within instances. This makes hunting in them very appealing. However, it also attracts people that are there simply for the loot. Make sure that before you enter the instance, everyone has agreed to how loot the loot gets divided. The group may be hoping to find a particular item for a particular character, or they may be prepared to sell everything that drops and split the cash. Usually items that can be used by multiple members of the party are "rolled for." It is considered proper etiquette to pass on items you cannot use; however, there may be items that the Group Leader decides that everyone should roll for. The Group Leader has control over the Loot Policy setting. Make sure you know what this setting is and what you may or may not do with regards to loot. Most arguments between players stem from Loot issues. Don't let Loot spoil your fun.