There's a few FB groups on Dakotas. but be forewarned, they're unmoderated and full of sarcastic jerks. (I can be one now and then too, but usually not until someone shows they truely deserve it)
there's also a few other websites:
www.dakota-durango.com used to be quite active, but now is full of a bunch of kids asking how to tint their headlights, or what spark plugs to run in their stock oil burning truck
www.dakotart.com still a fair amount of guys on there that are active and knowledgable in all things Dakota. the club is recovering from drama that drove away paid members, and the ease of using FB pages on a smart phone are hurting overall site activity. In January I was elected president of the DRTC club. (the website is a free forum we maintain. membership not required in club to participate in forum)
www.racemagnum.com some good smart guys on there too for all things magnum small block related, but again, lots of arrogance and guys trying to be funny, so a serious topic can go off topic for 3 or 4 pages before coming back to the topic at hand.