One of my absolute favourites is
Flying Moose of Nargothrond - the Tolkien Sarcasm Page is brilliantly humorous, with parody artwork and lots of stories, crackpot theories, and more goodies.
I looked through my Tolkien bookmarks, and though I have lots of sites listed there, I actually spend very little time looking at them. After all, I need to check out so many other interests in the internet - yes, Tolkien is not my only hobby!
*wanders off to read the baby polar bear's blog, or maybe browse some new patchwork patterns, or check the Georgette Heyer forum, or see if Lindsey Davis has a new Falco book out, or...
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'Mercy!' cried Gandalf. 'If the giving of information is to be the cure of your inquisitiveness, I shall spend all the rest of my days in answering you. What more do you want to know?' 'The whole history of Middle-earth..
.'