Like many planners, I also read the blogs of others. If you can tear yourself away from Brand Tao, try these:

25 letters in the alphabet by Nick Emmel
Ad Literate by Richard Huntingdon
Another Planning Blog by Simon Law
Chroma by Dino Demopoulos
Clay Shirky’s Writings About the Internet by Clay Shirky
Diginitive by Fran Hazeldine
Fallon Planning Blog by Fallon Planners
Futher and Faster by John Griffiths
Future Lab by collective contribution
How to change the world by Guy Kawasaki
Logic + Emotion by David Darmano
Misentropy by Iqbal Mohammed
Northern Planner by Andrew Hovells
Punk Planning by Charles Frith
Serendipity Book by Lee McEwan
Thinking out loud by Paul Isakson
Wishful Thinking by Mark McGuinness