You could auction weekly or monthly add space in your opening post, like dogie does with his step by step mining guides.
I'm sure there will be interest, since this is a well visited opening post!
I thought there was a rule banning that. And as far as I know, Dogie is an exception to that rule. I will send Theymos a PM about it, let's see what he says.
I think this thread may constitute the exception to the rule, but PM theymos for clarification. He's not back till next month though so maybe wait till then as your PM might just get lost in the clutter.