Here are some useful links from around the web for Shotokan Karate:
Wikipedia Page: http://en.wikipedia.org/wiki/Shotokan
Ethos Shotokan Karate Centre (Surrey): http://www.ethosskc.org.uk/
Think there should be a link here that we haven't mentioned? Email us at firstname.lastname@example.org and we'll put it up if we like it!