Google Books - Wide Sargasso Sea
A link to the full text of the Norton edition of the novel.
Norton's Wide Sargasso Sea Reading Group Guide
http://www2.wwnorton.com/rgguides/sargassorgg.htm
A site from the publisher of Wide Sargasso Sea offering more discussion questions and contextual information.
Biography of Jean Rhys
http://www.qub.ac.uk/schools/SchoolofEnglish/imperial/carib/rhysbio.htm
An in-depth biography of the author.
The University of Tulsa - The Jean Rhys Papers
http://www.lib.utulsa.edu/speccoll/collections/rhysjean/index.htm
An overview of Tulsa's holdings.