The international definition of a 'public internet forum' should be any forum open to public registration or available on public search engines.
Any Public forum that earns money through advertisement, has open registration and is posted on public search engines shall be required to follow World Assembly Resolution #30(Freedom of Expression).
Excluding users of said public forum who engage in spam, slander, incitement to violence or the usual exclusionary clauses or cause significant harm(such as trolling)
Said proposal would not restrict public internet forum moderators/owners/admins from regulating general attitudes or behaviours, but would restrict them from deciding what ideological positions they will permit on their forums. Unless that forum was established with a specific ideological purpose(a conservative/liberal/LGBT forum for example). Any other forum catering to political discussion will, however, be so regulated under the proposal. Video hosting websites would also be restricted from interfering with political speech if political speech is at all permitted on their site.
I am also considering a resolution or amendment to the current resolution to restrict Search Engines from ideological bias.