University of Oregon
University of Oregon: Renascence Editions: Milton and the Obedient Moment [Pdf]
A very extensive analysis from the University of Oregon of John Milton's three most popular works: "Paradise Lost," "Paradise Regained," and "Samson Agonistes." Has religious and philosophical perspectives.
Bartleby
Bartleby.com: Milton's "L'allegro"
Full text of Milton's poem from "The Oxford Book of English Verse."