Thanks to Bloglines getting a backlog of posts from Will's blog, I checked out this old post of his that pointed to Web Design Patterns at http://www.welie.com/patterns/.
An interesting collection of web UI patterns e.g. when to use "breadcrumb" navigation and why, the purpose and function of a "testimonial" page, the use of alternating row colors in lists, and lots more, most with real-world examples (and some counter-examples). Worth a look to get ideas and perhaps add that real polish to your website (now someone, please, examples of all the patterns in ASP.NET?)