Have you visited FDA.gov [1] lately? *swoon*

According to the FDA, they redesigned their home page because, "In a nutshell, we listened to you. We tested the usability of our Web site by asking our key audiences".

This site should serve as a model for other government agency websites to follow, in my humble opinion. The content avoids jargon and everything is structured in a way that makes it so easy to scan and find what you need.