Phantom is working on the spec. right now, and I have posted a wiki on assets (which includes information on issuing assets, trading on the DEX, paying dividends, etc.):
https://wiki.counterparty.co/w/Assets.
The wiki on broadcasts and bets is undergoing another revision right now and will be up shortly. Between these two wikis, Counterparty's basic functionality ought to be covered.
The wikis have had to undergo several revisions in order to become more user-friendly, and any criticisms/suggestions are greatly appreciated, and, for the assets wiki, can be posted here:
https://forums.counterparty.co/index.php/topic,142.msg962.html#msg962.
Thanks, that's great to know. Once it's comprehensive enough, I'll get started on creating a guide "for dummies". I hope this will help get the community started on a bit more 'outsider interaction', because currently XCP is fragile in terms of PR.