A blog post is more then a diary. It becomes a source of public information.
If you think about Facebook, it is really a personal blog with cool features with an added benefit of you choosing who to share with. Take it to another level and it can compliment a website, become a content management tool, act as a database or be an entire website on its own.
Another cool feature is being able to add links and other forms of multimedia as simple as a photo and so much more.
It was a great time.