Here are a few weblinks for further reading and history: 

Mike Chase is the awesome man who first got me inspired in masks. A teacher, director, performer and mask-maker extraordinaire.

Strangeface are wonderful mask makers who have made many of the masks I currently use. Great value and robust for teaching purposes.

National Theatre’s World of Commedia is a collection of really useful videos led by Didi Hopkins

Micke Klingvall’s Blog on Commedia – artistic director and founder of Kompani Komedi, Swedish theater group dedicated to Commedia dell’Arte and Vulgar Comedy.

Tut’Zanni – Brooklyn, NY based company. Great blog on the relevance of CdA today.

World of Commedia – Barry Grantham’s website, author of Playing Commedia and Commedia Plays

Antonio Fava’s website – train with the true maestro in Reggio Emilia, Italy

Faction of Fools Washington DC based company, true to the original form with a very informed history page

La Commedia dell’Arte – very useful for historical research, characters, scenarios and lazzi

i Sebastiani – source of a great number of scenarios to use as starting points for devising and playing Commedia

North Western University library collection of Antonio Fava’s masks with useful history, photos and video links

http://www3.northern.edu/wild/th100/CHAPT13A.HTM – Q&A guide to Renaissance Italy

Roberto Delpiano’s useful history of Commedia

It’s Behind You – a history of Pantomime and the Harlequinade

V&A Museum’s page on the history of Pantomime

V&A Museum also has a great article tracing the evolution of Pulchinella into Mr Punch the puppet

Cliff Yates is a performance poet, teacher and writer who discovered Commedia recently