Not sure if WoD changed most of the stuff, but I cant find any items that bind to bnet account that will increase experience gained by x%..

Well, not none.. But I could only find back and head gear from guild vendor and leg (yet to unlock)..

is there other way that can boost some alts to 90 faster? atm im using those 2 gear + repeating instance runs.. so far 3 days and level 32 only -_-