> The Court initially noted that it would be an easy case if the town were a more traditional, publicly administered, municipality. Then, there would be a clear violation of the right to free speech for the government to bar the sidewalk distribution of such material. The question became, therefore, whether or not constitutional freedom of speech protections could be denied simply because a single company held title to the town.
It's also not a good idea to bring up this case without bringing up Cyber Promotions v. America Online, in which America Online put up spam filters and Cyber Promotions tried to use the above precedent to say America Online was blocking their right to free speech. You can probably guess by the fact that we still use spam filters how that case came out.
As a final note, even that original case has had limitations based off of the type of property-
> In Lloyd Corp. v. Tanner, the Supreme Court distinguished a private shopping mall from the company town in Marsh and held that the mall had not been sufficiently dedicated to public use for First Amendment free speech rights to apply within it.