One of the bloggers I follow is Tim Urban at http://waitbutwhy.com http://waitbutwhy.com and it has four levels of posts in four distinct categories: Big, long

One of the bloggers I follow is Tim Urban at http://waitbutwhy.com http://waitbutwhy.com and it has four levels of posts in four distinct categories: Big, long and thorough articles; "minis" for smaller ones; "the shed" for sharing things found on the internet, humor or just whatever that don't fit; and "dinner table" for asking interesting questions frequently and receiving answers from the community.