"milbloggers" are much more interesting to read -- you can check michaelyon-online.com and freerangeinternational.com and find stuff linked from there. Generally someone who is on a 4-15 month tour blogs about it while there, and sometimes it is really interesting. Usually the people doing interesting stuff don't have time, though.

I blogged for a while (but it was all password-protected due to OPSEC issues). Then I mainly switched to just use quora.com to replace most of my other "recreational" computer time.