The project idea is from http://www.doodle.com/ where the event organizer can list all possible time slots and participants can vote on the available time slots.

This feature can potentially replace the function of Outlook Calendar so that the organizer can pick up a time that all participants are all available.

• Module: Date picker formatter, This module is a CCK formatter allowing users to pick one or more dates (from a date, datetime or datestamp CCK field) similar to the Doodle online service.