Elizabeth, Her Poets, and the Creation of the Courtly Manner: A Study of Sir John Harington, Sir Philip Sidney, and John Lyly, Nona Fienberg. (Garland Pub, 1988).
John Lyly (1554?-1606) - A biography, plus links to purchase all of his works currently in print.
Elizabethan Playhouses, Actors, and Audiences - An overview of Elizabethan theatre; covers regulation and licensing of plays, objections to playhouses, companies of actors, and composition and ownership of plays.