Well, not really a group in that we work on dedicated projects. This is just a release page for random chapters that we work on. Releases will be posted here and on MU. I'll probably forget to put it on Batoto, but I'm sure someone else in the group will do it.
Mediafire folder is here. If you don't want to bother with RSS, or checking MangaDex , you can download Mediafire Desktop and subscribe to that folder to automatically get updates.
Better yet, you can just use this free manga downloader to auto-download new MangaDex chapters.