WoW Factions - Steamwheedle Cartel
At Honored reputation you receive a 10% discount on vendor purchases.
WoW Factions - Bloodsail Buccaneers
The main benefit of this reputation is to gain access to a special captain's hat. To gain reputation with this faction, you will have to sacrifice your faction with the Steamwheedle Cartel. This can become an issue if you want to go to one of the Goblin cities (Ratchet, Everlook, Gadgetzan, Booty Bay) without being attacked by the guards.
WoW Factions - Hydraxian Waterlords
This is the main faction for the Molten Core. There are a few other monsters such as Lord Incendius in Blackrock Depths and Pyroguard Emberseer in Upper Blackrock Spire that also give reputation. Killing Desert Rumblers, Dust Stormers, and Hurricanian found in Silithus improves your reputation with the Waterlords, as does killing Greater Obsidian Elementals in the Burning Steppes.The primary reward for this faction is to allow you to get a permanent, non-consumable version of Aqual Quintessence. Before this was available you had to go to Azshara every week to gather one to summon Majordomo Executus.
WoW Factions - Wintersaber Trainers
This faction allows you to get a special purplish cat mount. Rivern Frostwind, (Wintersaber Trainers) awaits adventurers atop Frostsaber Rock North West of Everlook. He will then give you a series of quests depending on your reputation.The rest of the factions you may find have no rewards except to become friendly (non attackable) with the faction in question. It's always possible that rewards could be added sometime in the future, as was done with the Argent Dawn.
