How...Design Ideas at Work - Creative Workout
This article, from How's June 2002 issue, (not available on the web) is a great way to stoke up your creativity if you are feeling a little burnt out. While How focuses on print and interactive design, there are lessons to be learned for everyone involved in thinking up new ideas.
The article contains a list of additional resources, which I have linked to Amazon.com* below. You might also find some of them at your local library.
Enjoy! - -Douglas
* In association with Amazon.com. WelchWrite receives 5-15% commission on books purchased using these links.