I'm considering submitting a presentation proposal for the upcoming NANOG which may include related 'stuff'. It may just turn out to be a BoF , or prehaps a lightning talk -- it depends on how the presentation turns out... :-) Instead of 'correction mechanisms', it would be looking specifically at behavioral aspects of some of this. - ferg -- "Edward B. DREGER" <eddy+public+spam@noc.everquick.net> wrote: (Note that I've not examined OpenDNS's offering, so I'm _not_ pretending to comment on what they do.) Let's quit looking at overly-simplistic correction mechanisms. Do spell checkers force autocorrection with only a single choice per misspelled word? Return an A RR that points <correction service>-controlled system. Said system examines HTTP "Host" header, then returns a page listing multiple possibilities. "The site you specified does not exist. Here is a list of sites that you may be trying to access: ..." I'm generally ignoring other protocols to limit the discussion scope. However, one can see how SMTP and FTP might be similarly handled. (IMHO not as good as a SRV-ish system that could return NXDOMAIN per service, but actually somewhat usable today.) Eddy [snip] -- "Fergie", a.k.a. Paul Ferguson Engineering Architecture for the Internet fergdawg(at)netzero.net ferg's tech blog: http://fergdawg.blogspot.com/