Setster is a simple web 2.0 service that let you have an online calendar. This is very useful for your customers to get an appointment at their convenience with you. They know when you will be available at their service.
Setster can act as traditional live receptionist who maintains the appointment details and it also shows the appointment details outside. This is something which was never explored, exposing your calendar as a Web 2.0 widget. Think about getting an appointment with your very busy Doctor!
At the back-end, Setster user can setup his/her business timings, information on available services, costs, accept or reject incoming appointment requests and so on. They can also customize the Setster widget styles. On the front-end, Setster users can get a URL where they manually select an appointment. Setster can also give you HTML code so that you can embed that widget in other WebPages.
Setster also provides alerting services so that the backend service is reminded of your appointment.
Setster is a great service even though certain must have features like integration with e-mail apps like Microsoft Outlook are missing.