Jacob Kaplan-Moss

Ruby QuickRef

(cheatsheet, docs, documentation, ref, reference, ruby)

Django cheat sheet (Mercurytide)

Really purty one-page cheat-sheet, updated for Django 1.0.

(cheatsheet, django, python, reference)

Index of /mercurial/ref/v1.0

A couple of quite nice Mercurial quick-reference cards.

(cheatsheet, hg, mercurial, reference)