I do and i don't and I do again. I keep swiping the slate clean every so often as my life cycles between stability, depression, and mania. The blogs I maintain are public but the profile information is not my own. It is good to air out what is on my mind in a public fashion. One thing to be careful for though is not to fall into the trap of rumination. It might be good to set yourself some rules before venturing into blogging and online journalling.