So far that I know to advance skills past 225 to cap it at 300 a quest needs to be done...
for the alliance the locations of the following...
firstaid - Ironforge first aid trainer (must be level 40)
cooking - Ironforge cooking trainer (must be level 40)
fishing - Ironforge fishing trainer (must be level 40)
tailoring - Teldrassil tailor trainer (must be level 40)
if you have any more to show please do.