Church of The Customer
I'm constantly pulling great ideas from Church of the Customer - a blog from the authors of Creating Customer Evangelists. Jackie Huba and Ben McConnell always have something great and inspiring to say on their blog. (Maybe it's because they are from Chicago?)
(Their "big idea" is that the greatest way to spread the word about your company, church or organization is via "word of mouth" from the people who are loyal to the mission of the organization. Great stuff!)
Here's a link to a presentation that Jackie gave in Seattle a few days ago. It's a PowerPoint presentation done very well - and you'll grab some great thoughts from it.