Official:

kinonotabi.com
The Japanese official site. It's cute.

kinosjourney.com
The English official site. Empty as hell.

Wallpapers and galleries:

Desktop Anime
The best source for Kino wallpapers I've seen ^o^

Vectorage
Kino vectors made by the same gal from DA. Wonderful work!

Abstract Anime
Important wallpaper archive, they have two Kino wallpapers.

Japanese fanarts:

Sanctuary
Sou Saizawa's site. So many cute fanarts!

Fansites:

The Beautiful World
The first fansite I've seen. It looks fantastic and really neat ^_^