To blog or not to blog...

Do I or don't I? The dilemma as to what can be shared about your life or rather what can be spilled over in your blog prevails.
I have read quite a few blogs which probably reveal a little too much about a person's life and I don't think it's always a good idea.
Even when we start to write fiction, we sometimes tend to jot down our views or taint the story with happenings around us. Or in a way the story gets "inspired" from events around us...something that has caught our attention.
Just last week, I wrote a blog…something that came straight from my heart, and then I wasn't too sure if I was willing to share it with the world at large.
I ended up sharing the blog with a few select friends, though I think it's a topic worth discussing with the world. But in the process, it would also impact my privacy.
So...I often wind up thinking do I spill the beans or do I keep them to myself. Do you?