Sometimes, I get jealous of people who have these amazing dreams that inspired their books. Twilight famously began with a dream. I see it all the time on Facebook and Twitter (or so it would seem).
Some people get sparked by a dream, some by a single question around a theme. For me, inspiration can come from the most mundane of things.
Oracles Promise started off the meaning of a name. The name became the MC's but I crafted the entire world and story to revolve around the meaning of her name.
Lodestar started with the itch of an idea to write a paranormal story of some sort. I researched paranormal beings and narrowed the list then a single idea hit me with regards to one of them and the entire crafted world sprang from there.
My current WiP was inspired by an element in a computer game I played the demo of. Add in a dash of Dorian Grey and a liberal sprinkling of both Hans Christian Andersen and the Brothers Grimm, with a base of Tolkien-esque milieu fantasy and you've got my current WiP.
I never know where my inspiration will come from. Right now I've got a dystopian setting brewing in my head (no idea where it came from as it's not a genre I love but I'm willing to give it a go if I can read more in the genre) that came about from a combination of an argument with my brother over teacher salaries and things I've learned about No Child Left Behind. I have an adventure novel that's been stewing for ages that was actually sparked from a dream, but that's unusual for me.
Most often my inspiration comes from the everyday around me. Where do you get your inspiration from? Do you know? Have you thought about it?