We all woke up to somber news this morning, John Green passed away. He left us on May 28 but news didn't get released until just now. I have always respected Mr. Green immensely and am very sad about his passing away. We are loosing more and more of the people who were the first in the field.
I don't think I could do an article about Mr. Green that would be worthy of his contribution and significance to the field, but here is Loren Coleman's article about him.