I've been keeping paper journals since I was 8 years old. I tried livejournal for a few years, but there was the whole complication about making friends.....I didn't feel like I could really put everything down with others watching. Facebook feels like I'm oversharing, so I haven't been updating status as much lately....
I bought another paper journal when I moved into my new apartment last July and I've been a little better at regular entries in it. I think journaling is essential. On a lazy day, I will search through years of journals, looking for the same date of that year, and see where I was at that point in my life.
I used to dislike entering food on the computer, but the iChange tool is very useful to me. I like it quite a bit.