I find it appropriate for Classic playerworlds to host their own forums, both because the post count wouldn't warrant having a separate section on the GraalOnline forums, and because they would have the freedom to promote the website/forums and integrate it with other content that's related to the server.
UN has a website currently under construction. In addition to forums, it will have everything else you'd ever need to know about what is on the server. Doing this will offer a lot more functionality and potential than anything else.
Not to mention that a URL like
www.unholygraal.com would be a lot more attractive.