Remarkably similar to Yahoo! Answers, Amazon has launched Askville.com. At first look, there is almost no difference between the new service and the popular, established Yahoo! Answers. Users ask questions, get responses and can respond to questions themselves. User profiles can be established, with the ability to add friends and send private messages.

At the very least, Askville (like Answers) can be a good way to gain some exposure, make some connections and add some pages to the SERPs for your website.