Spreadsheets for the People! is a great example of a micro-site. It contains information for a particular product or brand. This allows for a narrower field of focus and action for a visitor than do most news-centered websites. It also runs on a multi-site installation of WordPress.
I hand-coded the banner image using SVG, which I then grabbed a screenshot of and converted to .png. The circular background image is a repeating-radial-gradient easily made with CSS3.