I'm late in joining, but I just wanted to throw in my two cents anyway...
I love journaling!!!! I've been doing so for a little over ten years. I don't really have anyone to talk to about what I'm feeling, so I purge all of my feelings onto those pages. I usually feel a little better afterwards because I feel as though I released some of those feelings that are bothersome. I prefer a physical journal, an online one scares me. The closest I come to an online journal is PC. But I go to Barnes & Noble for my journals. They have various types to choose from. And as others have mentioned, I don't go back and read them. Maybe the really old ones just to see how much I've grown (or I'm bored and I come across one of them). Good luck and I hope you enjoy your journaling journey!