Websites vulnerabilities disclosure

[offtopic <offtopic () mail ru>]

Hi List.
I need your opinion.
Recently I found multiply vulnerabilities in several sites. some sites behold to security-related firms but not 
software vendors. I'm trying to contact that companies under rfpolicy several times but don't receive any response on 
receive something like "what injection your talking about?". 

I want to know - is it "ethical" to use standard vulnerability disclosure policies to public websites? Which fird-party 
can't be user as coordinator, like CERT/CC? 
Or in other worlds - who should care about Web-sites security?
Thank you.

(c)oded by offtopic () mail ru

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