I don't see generators as a must-have part of this tool. I have generators galore in books and online, not sure why they should be recreated as campaign content, they're generators. A link should be fine.
As for a random generator for an example, here's O.G.R.E at enworld. It's a whole system for generating and sharing generators.
http://www.enworld.org/forum/dnd_portal.php