This week's book giveaway is in the OCPJP forum. We're giving away four copies of OCA/OCP Java SE 7 Programmer I & II Study Guide and have Kathy Sierra & Bert Bates on-line! See this thread for details.
Chris Gammell of TheAmpHour fame is starting an online training on electronics, where Arduino will play a significant role.
It's going to be a hands-on trip. The purpose is to actualy build the hardware while the course runs.
It hasn't started yet, but you can flag your interest by subscribing @ contextualelectronics.com.
I plan to join.