A note is a message written from a single person to a group of people that they can mutually view, and add replies, but it contains a finite amount of space.
Notes contain information about events, quests and messages from one player to another group - they are written on by typing WRITE NOTE, and then entering, line by line, the message you wish to add. Writing on a note adds text to the end of whatever was on it before. To wipe a note fully, type ERASE NOTE, and it will become blank once again. Note can hold, at most, twenty lines of text.