Shaman farming

Shamans quite similar to the paladins and used to be the horde/alliance split equivalent.

Elemental has the downside of mana regen and no free water and very limited AOE capabilities.

But enhancement has on par DPS with most classes and with some mana conservation and efficient heals you can minimize downtime to maximize hourly gold/xp grind rates.

Best practice is to, if possible, find a good tight packed spot and set up some totems where you can pull to. So set up a Strength of earth, grace of air and mana regen totem. Then use that as your base to pull from. You can use rank 1 lighting bolt or full rank if you don't have any mana issues.

Using Stormstrike followed by earth shock gives you a nice little dmg boost if you need it and your mana supply allows it. Dual wield is definitely the way to go over a 2h weapon and it will increase your DPS by quite a bit.

Lightning shield is a cheap way to increase DPS especially when talented for it. If you need mana use water shield of course to keep it up. If you cant pull to 1 spot always use totemic recall if your using totems so you dont loose your mana.

Using these Mana conservation techniques and Dps increasing tricks you should be able to be on par with most other classes and in some cases even do better(especially at lower levels)