Once you have Fubar installed, you will notice there is a bar across the top of your screen and it tells you where you are, including the coordinates and the level of the area you are in. When you mouseover the displayed location a drop-down menu appears which tells you more detailed information about where you are. Below that it shows you the instances that are in the zone that you're in and their level, a list of recommended zones and their level, and a list of recommended instances and battlegrounds. What if you don't know how to get there? I'm so glad you asked. If you click on any of these recommended zones or instances in the dropdown menu, it will also give you step-by-step directions on how to get there from where you are. How cool is that!? I've heard some people say that if you're a gnome you can't do night elf quests and so forth. I say: RUBBISH! If you hate night elves and have never rolled a night elf but you want some different content, by all means find some way to get to Darkshore safely and enjoy the content. Besides the change of scenery you'll also enjoy reputation gains with a different faction which you may find a use for later on.
So now you're in the zone. Now what? You have two options. You can always look for quest givers and quest hubs manually. It's not that difficult. They tend to hang around in outposts and towns and the yellow exclamation mark is a sure giveaway. Granted, some of them do hide and some quest hubs are off the beaten path. (Heck, I've been playing for two years, and I'm still finding little nooks and crannies I never knew were in the game.) So you want me to give you an easier way, do you? This will require your web browser. Just park your character someplace where it's not going to get eaten by a murloc, and press ALT-TAB (or APPLE-M on a Mac) to go back to the desktop. You'll be able to come back to World of Warcraft the same way when you're done. Fire up your web browser and go to Wowhead.com. I'm going to show you a feature of Wowhead that I didn't even know about until very recently. Type in the name of the zone you want to quest in. An copy of the in-game map will pop up with pins to indicate the location of every quest giver in the zone. There is even a filter above the map you can enable to choose Alliance or Horde quest givers. If you mouseover a pin, it will give you more information about the quest giver including their coordinates.
These resources should keep your quest log full for a very long time! They're also helpful if you're trying to find faction-based quests that are below your level. Enjoy!