For your convinience, I've provided this handy form by which you can easily send me an e-mail. Just fill in your e-mail address, what the e-mail is about (like say, you want to point out a bug in one of my games), and the actual message. Once that's done, just click on the "Send Message" button and I'll try and get back to you within 48 hours.
If you are e-mailing me about a bug, please read this article about reporting bugs to Mac OSX developers. It'll save you and I some headache if you know ahead of time what kind of information I'm going to ask you for if you don't provide it the first time around.
If you do not hear from me within a few days, then it's very likely that I did not get your e-mail. Please verify that you're providing a valid e-mail address that I can reach you at.