Everything Vulcan 500: forums, support and more!
http://en500.us/
Lots of useful mod and how-to's.
www.vroc.org/ Vulcan Riders and Owners Club. Originally started by some Vulcan 1500 owners.
http://vulcan500ltd.info/ Page of another Vulcan 500 owner unfortunately like this page lots of it "Coming Soon."
http://www.en500.com/
If you can read German.
Dirty Girl's Vulcan Page A racer who has put over 100K kilometeres on her Vulcan 500.
thegreatwhiteknight.com and http://454rider.com/
Two pages dedicated to the Kawasaki 454 LTD The immediate predecessor to the vulcan 500 (EN500A)
http://vn750.com/
The Vulcan 750 is practically the same bike as the EN500A ('90-'96 Vulcan 500) except with a V-twin where our parallel twin engine should be.