There is no specific website for fender eliminators, however, i have a few recommendations.
1) Yoshimura Fender eliminator - available on ebay, amazon, revzilla
2) R&G Fender eliminator - same as above
3) Vagabond fender eliminator - bought mine through amazon, cheaper and serves the purpose. able to use stock number plate lamp, means no cutting of wire needed.
Or if you don't mind waiting for a quality piece, it looks like TST Industries is making a killer adjustable eliminator. It even has a really nice block off plate that fills the hole left from removing the OEM fender.