I'm currently digging into case studies on how to do startups in the bootstrapping way; and so I turn to the nice HN community: what other blogs fits into the criteria?

Definitions:

successful: $1k/month at minimum

transparent: blog describing the internal business process of creating the startup

bootstrapper: no external investment

The ones I know of:

http://www.balsamiq.com/blog -balsamiq mockups

http://www.kalzumeus.com/ -patrick -bingo card creator (and others)

http://pluggio.com/blog/ -Pluggio (was: tweetminer)

Who else would fit into this criteria?