If you ever want to know the difference between a casual fan and a full-on geek, here's a great example (and we've chronicled oh, so many here on CNN Geek Out's Squee). As anyone familiar with J.R.R. Tolkien's Middle Earth will tell you, there are a lot of complex relationships involved within this universe. Tolkien … Continue reading 'Lord of the Rings' fan creates a Middle Earth family tree