What page has the best form design?

Forms are a great way to interact with your customers and get information about them. But many forms are boring looking and hard to use. What are some of the best forms you've ever seen online? Last year sites like Twitter, Knol by Google, and Plurk were nominated. And the winner was Martin(ish).

But just because a site was nominated last year doesn't mean it will be this year. It's up to you to decide which site has the best form design. Nominate your choice for the page with the Best Form Design. Only the 5 most popular sites will make it to the voting stage. And don't forget to nominate for other categories like Best Mac Consumer Image Editor, Best Monitors, Most Useful JavaScript Script, and Best Online Web Software for Web Designers.