filmshooting.com
a great site with perhaps the best forum out there for super8 users. Search the forum for a wealth of information.

cinematography.com
has forums for super8, 16mm, 35mm, processing, etc

onsuper8.org
onsuper8 is one of the best sites for up-to-date information on events, developments, in fact, all things super8!

standard8.org
a great new resource for the standard 8mm user.

charliedontfilm.squarespace.com/
a super 8 blogspot by Michael Ryan. Worth a regular check.

smallformat.schiele-schoen.de
smallformat magazine is a highly recommended, very stylish and invaluable mag for the small format user and buff

www.super8today.com
a great new super8 mag from the USA

8mmforum.film-tech.com/ubb/ultimatebb.php
as the name suggests, a forum for the 8mm user

www.kodak.com/global/en/service/faqs/faq2107.shtml
a Kodak page containing the super8 cartridge film speed notch chart

super8wiki.com/index.php/Main_Page
the super8 wiki is huge!

home.pacbell.net/mnyberg/super8mm/
Super8 Man!

super8wiki.com/index.php/Category:Manufacturers
this link will take you directly to the super8 wiki's camera list