[dan40]

Thanks, how would you consider my linking to other sites, through a link in a new message, or is there some way to display the content through an XML file or RSS feed?

Good comment about not requiring email activation... Maybe that's one of the reasons that's keeping people from signing up. When usership gets going, I should then reinstate email activations.

Is the amount of content not dependent on how many users you can get, who post their own content and therefore increasing the amount of content you have?

You just need a place to allow them the freedom to post whatever they wish about a relevant topic.