Black Ives & Black Ives De' Von Link Page
Darkstarr Rottweilers
Windchyme
Neu-Rodes Rottweilers
This site has LOTS of information for people who are disabled and use service dogs.  Paula (site owner) has gone to great lengths to get all of this info together in one place.   I don't know of any sites that give more detailed information regarding using a service dog.  Paula's own service dogs are Rottweilers. 
Lovely site with a wealth of information for people who are using a service dog or for those who are considering using one.  
Kudos Paula on a great site!

Onofrio
MB-F
Bradshaw
ARC (American Rottweiler Club)
Rottweiler Hall of Fame
ARV This site is a MUST see for all Rottweiler enthusiasts! Whether your a long time breeder or just a fan of the breed you will enjoy this site.  TONS of pictures.  From the most famous Rottweilers in history to the famous companion of of an owners heart this place has it!
This site also has many pedigrees along with the dogs. 
OFA
AKC
Kevin & Christy Calhoon are the site's owners and creators.  Along with all those pictures, pedigree's etc... They have also received permission to post many of the interviews and articles from TRQ on this site. 

A wealth of information here to be had. Kudos to you guys on one heck of a site and thank you for giving me permission to link it here to mine.  :-)
USA (United Schutzhund Club of America)
DVG
The Rottweiler Chronicle (On line Magazine)