As noted on my About page, I have a degree in Linguistics. This interest, while not monetarily rewarding, does come in handy in one of my more nerdy endeavors:
I have, for some years, been working on a constructed, Elvish language for use in my writing. Some examples of it can be found in Wolf & Witch, but on the whole, I've done little with it (in fact, it's rather lacking in vocabulary at the moment, currently existing mostly as a number of grammatical rules, affixes, and roots).
I may make a page about it at some point in the future, but for now, you can read more about it over at my dedicated blog, lemra davrasin.