Photography, Cameras and Lenses sites:

Canon International Web Site 
- International Canon Site
Digital Photography Review 
- One of the most complete site about cameras, tests, comparisons and much more.
The Digital Picture 
- another site about cameras, tests, comparisons and much more.
FredMiranda 
- Yet another one!

Post-processing Photografic Software:

Gimp Web Site 
- An Open Souce program for image editing. Freeware and Multi Platform.
IrFanview 
- Light, simple, fast and easy image visualizer. many image formats supported. Freeware.
Hugin - Panorama Tools GUI 
- Picture merger for large panoramas.

Other sites (Reference, Resources or Friends)

http://http://www.stefanoflego.it/ 
- Stefano Flego Photography - Home Page
http://www.fulmini.it/ 
- Italian site of Cesi Sirf about spikes
http://www.13casade.com/ 
- Trieste - Le 13 Casade