Article, "National and Colonial Education in Shakespeare's The Tempest":
http://www.shu.ac.uk/emls/05-1/cwebtemp.html
by Professor Allen Carey-Webb at Western Michigan University. Discusses "the relationship between English pedagogical practices and the development of national citizens and state sovereignty Shakespeare's enchanting romance The Tempest," with Prospero explored as a model of the English sovereign (4).
Malaspina Great Books page:
http://www.mala.bc.ca/~mcneil/tshake.htm
with links to various Shakespeare references, as well as lectures, essay topics, and essays about The Tempest and other plays.
Scene-by-scene commentary:
http://www.yale.edu/ynhti/curriculum/units/1986/2/86.02.06.x.html#m
about curiosities and points of interest in The Tempest, from Yale University.
"Shakespeare Illustrated, a work in progress, explores nineteenth-century paintings, criticism and productions of Shakespeare's plays and their influences on one another":
http://www.emory.edu/ENGLISH/classes/Shakespeare_Illustrated/Shakespeare.html
by Henry Rusche, a Professor of English at Emory University.