Astrophil and Stella - Structure, Theme and Convention: An essay on techniques in Sir Philip Sidney's sonnet sequence.
Elizabethan Sonneteers (Sidney): 1885 essay on the Elizabethan sonnet.
Gender and Genre in the Sonnet Sequences of Philip Sidney and Mary Wroth: A scholarly essay from "Deep South".
Luminarium: Sir Philip Sidney: Quotes, life, works, and resources at luminarium.org.
Sidney Journal: Access to articles published by the Sidney Society.
Sidney's Arcadia: Plot summary and extensive commentary on The Countess Of Pembroke's Arcadia, from the University of Utah.