Shakespeare’s Sonnets Text and interpretation of Shakespeare’s Sonnets, along with the text of other Renaissance sonneteers.
Luminarium An excellent site devoted to medieval, Renaissance and Restoration literature. Has online texts, brief author biographies, and criticism.
Open Source Shakespeare A great online Shakespeare concordance and search engine.
Renascence Editions A large collection of online Renaissance texts.
Silva Rhetoricae A wonderful compendium of Renaissance rhetoric, this site both provides a sense of the rhetorical knowledge Shakespeare would have had, as well as a guide to particular figures of speech in the sonnets. To most easily find particular figures of speech, view “the Flowers” of rhetoric by groupings.