I have written a little review of The Hobbit: The Desolation of Smaug; it is published here, on Curator. In this article, I also summarize my experience at The Tolkien Professor's conference this past weekend, called "Mythmoot II."
You may also be interested these articles I wrote last year:
"Packing for an Unexpected Journey"
"Embellishment is an Understatement"
"Showing Us Our Inconsistent Selves"
or these lectures:
"Where is The Hobbit? Tolkien's Fantastical Geography"
"J.R.R. Tolkien, Myth-Maker"