Acratech www.acratech.net
Adobe Updates http://www.adobe.com/downloads/
Arca-Swiss www.precisioncameraworks.com
Argraph www.argraph.com
Astrojargon (Shutter Count Utility) http://astrojargon.net/EOSInfo.aspx
B+W www.schneideroptics.com
BushHawk www.bushhawk.com
Camera Holster www.cameraholster.com
Cokin www.omegasatter.com
Delkin www.delkin.com
Digital Foci www.digitalfoci.com
Dust-Aid www.dust-aid.com
Gitzo www.gitzo.com
Hoya www.thkpoto.com
Induro www.indurogear.com
JOBO www.jobo-usa.com
Kingston www.kingston.com
Kirk www.kirkphoto.com
Lexar www.lexar.com
Lens Rental https://www.lensrentals.com/for-all
Lowepro www.lowepro.com
Manfrotto www.manfrotto.us
PNY www.pny.com
Really Right Stuff www.reallyrightstuff.com
SanDisk www.sandisk.com
Singh-Ray www.singh-ray.com
Sunpack www.sunpack.com
Tamrac www.tamrac.com
Wimberley www.tripodhead.com
Wolverine www.wolverinedata.com