If you're European, check out:
http://luclin.de/
It's the home of Europa, a *drum roll..* European guild where you'll find plenty of people who also play during Euro hours. Hotspots, if you can call them that, are Crushbone, the Oasis, Upper Guk, Unrest and Mistmoore. I don't know if Kurns is busy, but I do know that it is great xp all the way up to 20.