When I was a kid, I tried quite hard to keep a diary. But it failed due to my laziness and lack of perseverance. As I grew up, I remember things back then. I thought that I could remember things well and clear. Recently I read one of my friend's blog. In there, it refreshes my memory throughout my time spent with her and our group of friends. And it reminds me of some small things that I actually forgotten.
Maybe a blog to me is not just recording my life, but as an intermediate that I could look at and refreshes my memory on some certain things. I don't really trust my memory that much and I don't think I would hold a pen and really get down to it and write a diary.