User Friendly on 4e - Perhaps neither original nor sidesplitting, but I like panel 1 a lot.
Feeping Creatures - I am this close >< to commissioning something from this guy.
How to Start a Revolution in 21 Days or Less - a blog about games and stuff
A Directory of Fictional Languages - Adelic for placenames in my next campaign? Tempting.
Musings of the Chatty DM - another gamer blog