Blog To feed the needs

Why do people blog? What do they blog about?

1. Some like to "share" their thoughts here
2. Some kind folks blog and provide information to the public (eg. fashion, beauty, technologies bloggers)

3. Some find the blog is the place to release their happiness, silliness, frustrations, anger, hatred towards someone, backstabbing and etc....
4. Some just to pass time (pure boredom)

People blog to feel better, satisfied and relieved.

Sounds like an ego boosting tool?