Shakespeare on the Web
A great place to digitally search within all of Shakespeare's works.
British Library’s Treasures in Full: Shakespeare in Quarto
A superb collection preserved in digital format.
Reference Books (Shakespeare)
The Monmouth University Library has over 70 reference books on Shakespeare, a few of which include:
The Greenwood Companion to Shakespeare: A Comprehensive Guide for Students. Four Volumes.
Shakespearean Criticism: Excerpts from the Criticism of William Shakespeare's Plays and Poetry, from the First Published Appraisals to Current Evaluations. 100 volumes.
The Folger Guide to Shakespeare. Louis Wright and Virginia LaMar.
The Essential Shakespeare: An Annotated Bibliography of Major Modern Studies.
Academic Journals (Shakespeare)
The Furness Shakespeare Library at the University of Pennsylvania
The Complete Works of William Shakespeare
Shakespeare’s Complete Works Online (University of Virginia)
Check out Shakespeare's insults to bring a chuckle to your day.