Bonus Experience will be available in game all weekend! Starting now, and running until Sunday, March 16, 2014 at 11:59PM Pacific* all players will receive roughly double XP.
As mentioned in Phathom's letter here, this bonus will vary for some players with all the XP modifiers in game and with XP Potions available.
Look for 30% reduction on lockout timers until Thursday, March 20, 2014 at 11:59PM Pacific*.
Happy 15th Anniversary weekend, EverQuest players!