I think it is a big picture
Well, it is a big and good idea. The programming will probably take some thought.
If it is mysql it will be easier, and have bot groups, for example if stefan posts, his news on the main page will show up as the group name instead of the username....
It sounds like a good project. Maybe extensive for a single person.
But to be advertised, you must first advertise and/or give a service.
Maybe you could add a spot under the main links for a random ad.
(Simple ad service for your partners in crime
I'm willing to help in anyway, if you make a bots-united ad (banner) I'll put it on my website.