User blog comment:Tholanar/If you were the High Queen or King of Skyrim..../@comment-80.216.219.47-20121230062352/@comment-80.216.219.47-20130102233346

http://elderscrolls.wikia.com/wiki/Dragon_Shouts

" The  Greybeards  study shouts and are the PRIMARY institution for studying the Thu'um among mortals."

See the caps'd part, which means there are other institutions.