I want to start a blog with them sometime, but I've been pretty focused on my next venture, so it's taken a back seat. Maybe once I'm not in the "building a product is so much damn work and I'm not sure I've got all the details ironed out" phase.

I did do a blog for my first startup, which is a little dated now (2007-2008), but may still be of interest, and better yet, has already been written down:

http://diffle-history.blogspot.com/