As far as I know, this is the only place on the web specifically for Fireman Sam, but if it isn't, please tell me. Anyway, these are some Fireman Sam things I found.

Really cool Fireman Sam shockwave games
http://www.prodplay.co.uk/games/sam/intro.html

Fireman Sam at the ABC
http://www.abc.net.au/children/show/shows/show_efg.htm#fireman

Fireman Sam videos in Hong Kong
http://www.kidzbizz.com.hk/

A Fireman Sam CDROM
http://www.ect.hobsons.com/product/dec98_sam.htm

Lots of Fireman Sam books
http://www.okukbooks.com/categryqbe2.htm

And when you think you've seen it all...
One of those rides they have in supermarkets
http://www.kidzstuff.uk.com/fms.htm