I'm shite at answering emails. Terrible, really. They're too easy to put aside, think, "Yeah, I'll do that later." and forget about them entirely. Even if all that's needed is a simple one-line acknowledgement or an easy answer to an easy question. I'm far better on services like Twitter, on message boards and social media type thingies. (There's a link to my Twitter account on the site's main page.) So, if you do have anything you want to say - "Sean, you majestic stallion of a man, when's the book due out?" / "Sean, you festering dicklicker, your book sucks and I hope you die horribly." / "Why 'Sean'?" - writing a message here is your best bet. Use it or don't, I'm pretty easy.
If you absolutely absolutely must get in touch by email, my address is namelesshorror [at] gmail [dot] com. But only in an emergency; I'm really bad at replying and I don't want you to feel unloved.