Everything on Airsoft Machine Guns is submitted by Airsoft Machine Guns users, and after they submit a story, other people will read it and give it a thumb up or down. If that story receives enough positive votes, it is promoted to the Featured page.
Airsoft Machine Guns also offers each user their own "Featured" page, and the stories promoted to their own "Featured" page page are determined only by the votes of the people this user has previously selected - these are what we call, the user's sources.