Mirrorless users may find these other Web sites of interest. I've organized them by mount in alphabetical order (other than some generic sites I list first):
Generic:
Canon:
Fujifilm:
- Fujifilm Camera Site
- Fujifilm Firmware Updates
- Fujifilm Downloadable Manuals
- Fujifilm M-Mount Adapter Lens Compatibility
- Fuji X Forums
- Fujifilm X forum on dpreview
- Fujifilm's X Photographers Gallery
- Fuji Rumors
- Fujifilm Professional Services
Hasselblad:
Leica:
- Leica forum on dpreview
- Leica Rumors
- Leica’s Web Site for SL Lenses
- Leica’s Web Site for TL Lenses
- List of M-mount lenses
- L-Mount Alliance
Nikon 1:
- Nikon Firmware Updates
- Nikon Digitutor
- Nikon 1 forum on dpreview
- Nikon FT-1 limitations
- Thomas Stirr's Web site (was the most visible Nikon 1 user out there; now replaced by smallsensorphotography.com, see generic, above)
Nikon Z:
m4/3:
- Four Thirds official site (also Micro Four Thirds, or m4/3)
- Micro Four Thirds Lens catalog
- Olympus E-P3 FAQs
- 4/3 Rumors (rumor site for m4/3 equipment)
- m4/3 Blog
- m4/3 forum on dpreview
- Olympus Firmware Updates
- Panasonic Firmware Updates
- Panasonic Lumix AF Guidebook
- Olympus Lens Updates for Panasonic Bodies
- Sigma Lens Updates for Panasonic Bodies
- Olympus Manuals in PDF Format
- E-M1 versus EM-1m2 Comparison
- Olympus’ Web Site for Lenses
- m4/3 camera/lens simulator
- m4/3 mount communication (1)
- m4/3 mount communication (2)
- Mark Young's E-M1 Mark II Setup
- Mark Young's E-M1X Setup
Ricoh:
Samsung:
Sigma:
Sony:
- Sony Rumors
- NEX C3 disassembled
- Play Memories Apps Site (NEX-5R, NEX-6)
- Sony AlphaUniverse
- Sony Developer APIs
- Sony APS-C forum on dpreview (NEX, A5xxx, A6xxx)
- Sony full frame forum on dpreview (A1, A7, A9)
- Minolta/Sony all things Alpha site
- Using MF Lens Adapters on Sony A7 cameras
Other:
If think another Web site should be listed here, please feel free to send me that link via email.