Just like the NO VACANCY sign that lights up your window - only for the Web!
niteclerk is designed for Inns, B&B's, Motels, Hotels (or any business that takes reservations) who want to provide general availability information on their website in just the same way that you use a NO VACANCY sign... only better. niteclerk not only works for today but for all future dates that might be "filling up" or that are already "full". And it super-easy to use... just login - click once for "filling up" - click again for "full".
All you need to do is sign-up, put the calendar code on your website and update your vacancies to have them auto-magically appear on your website.