WhatsNew? API

WhatsNew? is a service that allows bloggers to automatically show their readers what new content and/or features have been added since their last visit. The service works using the blog's RSS feed, and tracks users using cookies. WhatsNew? also provides analytics including overall numbers a well as breakdowns by post. WhatsNew? offers a Javascript API that allows you to customize the WhatsNew? widget. Options include customizing overlay content, customizing greetings, customization of the notification style, and more.