The handbooks listed below are sorted by codebase. The term Difference applies directly to the web page's tutorial for that tool. It describes how close to the original version of the editing tool that the tutorial on the web page is. I.e., a web site with Difference: None can be used for general familiarity with the basic editor, whereas a web site with Difference: High might be targeted more specifically to one mud.

CircleMUD

• OasisOLC and Deaths Gate script reference
  Editor: General Information about DG scripting
  Difference: None

Diku

• The C.A.W. Builders' Handbook
  Editor: General Information
  Difference: None

Merc

• Barren Realms Builder's Guide
  Editor: General Information

MUSH

• Amberyl's MUSH Manual
  Version: TinyMUSH 2.0 and PennMUSH 1.5

ROM

• Down and Dirty in the MUD
  Editor:General Information
• Mishakal's ROM 2.4 Mobprog Guide

ROT

• Rot-Area.doc
  Editor:General Information
  Difference: None
• Devil's Silence OLC Help Page
  Editor: OLC, ported from ROM
  Difference: High

Smaug

• Herne's Smaug Building Guides
  Editor: OLC
• Zylara's Smaug mud OLC Builders Guide.
  Editor: General Information
  

SWR

• Star Wars Reality
  Editor: OLC Version 1.0