Fever is a feed reading server product. The product site features a single-page design, with well-organized and clear product information at the top, and navigation anchors that scroll the page down. All of the features you need from the service—purchasing info, account info, customer support—are included dynamically in the single page, so once you've purchased the product, for instance, your customer info is populated into the account area. Support forms are also in-page. Simple and clever.