Richard colourfully refers to himself as "Karate Grandpa" and most days posts to his blog about his life and path through karate.
There are a lot of karate blogs about, however I often find them boastful and over technical and yes they have a place and purpose too.
But Richard has an everyday unassuming approach to his karate and everyday life which is frankly very realistic and endearing.
http://richardbuller.wordpress.com/