Greg,
The next Coop probably won't be for a couple months or so because the one that just finished, the manager will have to order the parts and it will take a while for them to do their job to get everything sorted out and sent out to everyone. But you can go to the "Current Coop's" forum and click the notify button, and it will send you emails when there is a new post in that forum (and that is with any forum). And the Current Coop's forum, there are only Coops, nothing else is allowed in there, so you'll know as soon as one starts. And that is where they will be announced too. And then right below the Coop forums, there is a Sale/Trade forum where you can sale/trade/buy things for your light show, you can get notifications for that forum too so you'll know if anyone is selling a controller or something else that you might be in need of. I get notifications from both of those forums.
And, I don't know if you know this or not, but at the top of the website, there is a link that says "Show unread posts since last visit", if you click that it will show you all the posts that have had new posts in since your last visit. It took me a while to find this, and man what I happy when I found it!
Oh, and welcome do DLA!
Jesse