[geggam]

Yes and no, the 1st amendment says the govt does not have the power to infringe on your preexisting right to free speech.

I am not sure where the govt thinks it can give corporations that power since the corporate entity is a fictitious person created by the govt.

Free speech is a right, the right to travel is a right corporations cannot prevent you from doing either. Arguably the internet is public property.

The line blurs when you offer the public access to your computers but no one has the right to curb your speech. Corporations might have the right to delete data but then they arguably lose the safe haven of simply being a service provider.