A "good" blog

While looking for a "good" blog I found Bill Gates' which is basically about his life and his interests. The blog appeals to a variety of audiences because of its diverse range of topics. Not only will he post about the latest book he's read but about the causes he is involved in and and his travels as well. Rather than organizing his posts chronologically Gates sorts them into several different categories so that one can easily find what they are interested in. Included are "books", "education", "energy", "development", "health", and "personal".  He mixes up text posts with photo galleries and video clips too. His blog is accessible, easy to navigate, and interesting to a variety of people, which is why it is a "good" blog.