I maintain a strict separation of work and personal life. Work is not mentioned on my site except in a very general sense. (“At work I used this software today.”) I don’t mention where I work, the type of organization it is, etc. I also try, as much as possible, to keep my personal life away from work. Limited personal e-mails to my work account, not sending them from my work account, keeping browsing during work hours to mostly work-related stuff, etc. There is a lot of stuff going on at work that I would love to blog about, but it’s really not a good career move to do so. :-)