I have more than a few "blogs" around the web, but only two that I post in seriously:
http://www.factorfantasy.com/meanders.html
http://indignant-blink.livejournal.com/
The one on my website is kind of vague because my family and friends have access to it but I think the vagueness adds something to it. My livejournal account was started because a former student on my team harassed me until I created one. Neither my family nor my friends outside of robotics have access to it.
Heidi