Jonathan Stroud Facebook fan page
@JonathanAStroud on Twitter
Follow Freedom to Think
Campaign tumblr site: http://freedomtothinksite.tumblr.com
Campaign twitter: @iamfree2think
Lockwood & Co. Publisher Sites
Bartimaeus Publisher Sites
A bit out of date, but this site from Jonathan's US publishers has lots of material on the original trilogy.
Contains reference guides to the characters, places and magical objects.
Fantastic German site: videos, interviews, and Jonathan encased in a weird crystal. Who could ask for more?
Jonathan at Random House
Since 2005, the place to discuss all things Bartimaeus! Jonathan visits too – and regularly answers members' questions.
Lots of fan fiction here…
Lots of lovely things to look at on Lee's site.
Strange things and words of wisdom from Andrew.