Years ago, when I was getting into 'designing' web pages, well, not in my very first days of doing so, but during the later ones, let's say in 2005 or 2006, I accidentally stumbled upon this great online magazine named "A List Apart" looking for some advice for doing i don't know what.
Soon there will be 'a book apart'. On HTML5. And as I feel like getting a beautifully layouted book on that topic, I will buy it. And I recommend you to do so as well, without knowing the book.
So head over to "A Book Apart" and preorder Jeremy Keith´s "HTML5 for Web Designers"
And as the topic is inspiration, I've got another great link that everybody into web design or development should have on her or his bookmarks list: 24ways.