What are Professional communities?
This list of communitied is dedicated to individual professions.
About Online Communities on Reddit
Reddit communities (or "subreddits") are forum-based groups on the popular social news aggregation, web content rating, and discussion website Reddit. Reddit is commonly known as "the front page of the internet". Users submit content to the site such as links, text posts, and images, which are then voted up or down and discussed by other members.
Do you know one? Please submit it!