I just read this great post on The Natural Haven. TNH is a natural curly hair blog that features the science of curly hair, curly hair care products, etc. But it's not like reading a science textbook. It's interesting and so informative.
The post is about shiny hair, why hair is shiny and does shininess equal hair health. It's also got a great diagram comparing curly hair to kinky hair. If you were ever wondering what the difference is, or what kinky means exactly, then check out the post (here).