Hopping on the old XP bandwagon!
EverQuest announced a double XP weekend in honor of their 9th anniversary.
To help celebrate the 9th Anniversary, starting 12:00 noon PDT, Friday, March 14, 2008 until 12:00 noon PDT, Monday, March 17, 2008, adventurers will be surrounded by a magical bonus experience increase of fifty percent. Enjoy! (PDT is -7 hours GMT: 1:00pm MDT, 2:00pm CDT, 3:00pm EDT, 19:00 GMT)
Read more at the official site.