Contacting me is very simple. I check my email most often, so if you have something you would like to contact me about, I would suggest email. I am rarely ever on iChat unless I am chatting with a friend of mine or screen sharing with someone I know helping them out, and I only use Skype when I am doing a livestream because if I leave it on, it beeps from a new message every 10 seconds. Also, Twitter is another great way to get ahold of me. I get all @replys on Twitter sent to my phone so if you follow me and send me a @reply, expect a response within the hour.

Email
luke@lukedimarco.com

AIM/iChat
lukedimarco@mac.com

Skype
lukedimarco

Twitter
@LukeDiMarco