Luminarium
Luminarium: Middle English Literature (1350 1485)
Listed as Medieval literature, you can find authors from the 14th and 15th centuries here, as some are considered Renaissance writers. Excellent resource with links to extensive info on the writers including Chaucer, Langland, and Gawain.
Annenberg Foundation
Annenberg Learner: Renaissance: Printing and Thinking
Focus on the emergence of the printing press and bookmaking. Humanism and other new philosophies of the Renaissance mentioned as well. Also, check out other links to learn more.