Rats (in DnD)

https://i.imgur.com/w7xm40n.png

All About Alignment

http://www.escapistmagazine.com/articles/view/tabletop/checkfortraps/8386-All-About-Alignment

Dungeons and Dragons: Players vs Dungeon Masters

http://community.wizards.com/comment/51039976#comment-51039976

An insightful post about the nature of running a D&D game, and how player and game master desires can conflict.

DMing for your toddler

http://gygaxmagazine.com/selected-content/dming-for-your-toddler/

How a Blind Player Improved Our Game

http://dungeonsmaster.com/2012/12/greatest-hits-2012-blind/

D&D 4e’s Out… And It’s Awful. Here’s Why

http://geek-related.com/2008/06/06/dd-4es-out-and-its-awful-heres-why/

This is rather old, and probably not very relevant so late after 4e's release. However, I really liked how he described what made an RPG an RPG, and what made DnD, DnD. Key points in his argument that 4e failed.

I Hate Skills

http://www.robertjschwalb.com/2011/02/i-hate-skills/

There are some nice comments at the bottom of that article too, including a few good counterpoints.

Tearing 4E a New One: Short Rests and Encounter Resources

http://angrydm.com/2011/02/tearing-4e-a-new-one-short-rests-and-encounter-resources/

Hilarious 3rd Edition DnD observations.

http://everything2.com/title/Humour%253A+D%2526D+Third+Edition

"Deities are capable of casting Contact Other Plane to converse with themselves - but they "resent such intrusion" and even have a flat percentage chance of lying to themselves."

"The 20th level Expert Trapmaker with Search, Profession: Trapmaker, Craft: Trapmaking, Knowledge: Famous Traps and Knowledge: Magical Traps all maxed out at 23 ranks, cannot attempt to find a trap if the Search DC is over 20, but the 1st level rogue with none of those skills can."