You can create a guild in Neverwinter with full group of players who are not member of any other guild. Speak to Guild Registrar NPC in the Protector's Enclave to create a guild.
Guild window can be opened by pressing the "G" key, you will find there a list of the members and their guild ranks, level, class, current location and personal/officer notes.
Tab news shows what recently happened in the guild, who leveled up, who left and who joined the guild, below is the guild vault log for trace who deposited something or withdrew.
Events tab allows you to create and edit guild events and of course determine whether you will participate in them or not, this facilitates considerably organization of various activities.
On the list of members (Roster), you can preview the members of the guild, set your note visible to others, or as an officer add a separate note to the players.
Guild Information such as name, website, description, message of the day can be found under information tab, and ranks settings can be changed in settings tab.