The Google Plus DCC RPG Community is amazing. If you have not yet joined and participated, I encourage you to do so. The people are very creative and supportive and a lot of content gets posted to the group.
There is also a DCC RPG Facebook Page.
Here is a list of DCC related online communities:
- Appendix N Bookclub G+ Community
- Black Powder Black Magic G+ Collection
- Crawling under a Broken Moon Google Plus Community
- Dark Trails DCC Western setting Google Plus Community
- DCC Con Talk
- DCC RPG Music Google Plus Community
- Gamma Crawl Classics G+ Community
- Gongfarmer’s Alamanac G+ Community
- Mutant Crawl Classics G+ Group
- Mutant Crawl Classics Facebook Group
- Reddit DCC RPG subreddit