Marathon Map Editors

Mia - My personal favorite. Less features than Pfhorte, but the maps it creates have been proven to be very stable. Comes with tutorial. 

Current Version: 1.0b17
Mia was found at: AMUG, Info-mac, America Online
ftp://ftp-2.amug.org/contrib/marathon/map-editors/mia-10b17.bin

Marathon Map Editor (MME) - Very user friendly and easy, although lacks all the features of other Map editors.

Current Version: 1.0d7
MME was found at: AMUG, America Online
ftp://ftp-2.amug.org/contrib/marathon/map-editors/mme-10d7-fat.bin

Pfhorte - A favorite among expert map makers. Has the most features of all the map editors available, however maps made by the PPC version of the application cannot be used on a 68K Mac. Some versions of Pfhorte have been known to create otherwise-safe maps that will crash.

Current Version: 1.0d25
Pfhorte was found at: AMUG, America Online
ftp://ftp-2.amug.org/incoming/pfhorte_1.0d25_.sit.hqx

Object Placement Editor (OPE) - A simple way to change the object placements in Network maps.

Current Version: 1.3
OPE was found at: AMUG, America Online
ftp://ftp-2.amug.org/contrib/marathon/map-editors/object-placement-editor-13.hqx

Marathon Edit Project  - A simple map editor with the idea in mind that someone will improve it. Source code included. Not very good.

Current Version: 1.2a
MEP was found at: AMUG
ftp://ftp-2.amug.org/contrib/marathon/misc-editors/marathon-edit-proj-12a.bin