I can be contacted four easy ways:
Deviant Art Notes
If you have a DA account, just visit my profile and send me a note. I tend to visit DA extremely often, as I've ended up as an admin of two groups.
My email is firstname.lastname@example.org. I check it about twice a day.
My Facebook account is over here. I'm primarily there for the games, but it's still a way to contact me.
My Tumblr account has questions enabled. You can use the ASK button to send me a question, with or without a Tumblr account. Note that if you ask anonymously (or without an account) I'll have to answer publicly unless you supply another means to contact you.