The Chosen Five
The game uses 4e rules. I consider ALL publications from Wizards as valid, so if it’s in the Character Builder you can bring it to the game, no questions asked.
As far as other sources go, I’ll need to see it before I can say yes to it.
Player’s Page / Character Content & Development – A list of the Player Characters, NPC group members, and Personal Content. This page contains all things player (including journals, notes, quests and miscellaneous information).
World Information – wider information on the setting of the campaign. Expect this to undergo some changes in the near future as I restart the campaign!
General Game Rules – a list of the basic rules of the game.