Seems the 1.0 SREG spec doesn't mention advertising support in your Yadis file. With the 1.1 draft, seems like this should be mentioned. Anyone against the Type being "http://openid.net/extensions/sreg/1.1" which is what the proposed openid.ns.sreg field value is? http://openid.net/specs/openid-simple-registration-extension-1_1-01.html --David