The iCal Exchange was created to give the Internet community an easy way to publish their calendars using the built-in "Publish to a web server" mechanism. You can publish your calendars here for free. When you share your calendar URLs, visitors will be able to download the .ics file, and even view your calendar through a Web browser. Ordinary WebDAV servers do not have this capability. In addition, we will have advanced features like password-protection for individual calendars.