I'm really interested on this mode. But to be professional, you need an OWN hosting. And I'm glad to offer you a free webhosting for you ( this is mine http://ihost.my ) .You can use own blog board, own forum board. And no advertisment at all. As in return, let me join your development team, I'll be the root admin and newsposter.
and perhaps, if we can raise money, we host our own dedicated server.
Anyway, contact me as soon as possible.
ym : mr_anazhd
email mr.anazhd [at] gmail.com