Main Page | See live article | Alphabetical index A personal organizer or planner is a small book usually containing a calendar, address book, and space for notes used to keep track of appointments or other plans. Paper and binder personal organizers have been increasingly supplanted by electronic personal digital assistants (PDA). Some personal organizers have bridged the gap by including holders for PDAs. This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.