You might also like these resources when it comes to writing:
Books for writers - recommended books on writing (this one is for you to filter yourself)
Sirlin.net — Your source of shocking insights on game design » Blog Archive » Writing Well, Part 1: Sensibilities (this one is pre-filtered by me and highly recommended; I suggest reading all three parts of the series)
Sirlin.net — Your source of shocking insights on game design » Sirlin-Recommended Books (there are many gems in this list, and probably more that I'm unaware of since I haven't read them yet. For starters, you can scan the items under the "writing well" heading, although other items on that page might spur some nice creativity. I own The Elements of Style, Why I Write by George Orwell, Ernest Hemingway on Writing, and On Writing by Stephen King. I'd mostly read and would recommend Elements of Style and On Writing by Stephen King. Why I Write seems good, too. Ernest Hemingway on Writing didn't really appeal to me, although there were some ideas I internalised from having read a degree of that book. I'm very fussy with books, so if I don't like them, I tend to go read something else and not finish them. I quickly know what's good and what's not and am usually pretty accurate in that regard.)