Scylla & Charybdis
Review Packet 2 - Mythology Latin 3a
By Dr. Melissa Schons Bishop, Boston Latin School
Find lots of information under the Homework Help section of Mythman.com.  (Scylla only)
Scylla and Charybdis on www.pantheon.org.  Excellent overviews of myth and its purpose in antiquity. 
For a more in-depth approach to the mythology, try Parada's web page, Bulfinch's or Characters of Greek Mythology - all accessible at the Lenape Latin Mythology page.
Scylla and Charybdis on Parada's web page.  Detailed look at the monsters.