eCal Internet calendar engine used by many online calendar providers. http://www.ecal.com/

CalendarServer.com Free resource for publishing event schedule information in an easy-to-read calendar. Does not require knowledge of HTML. http://www.CalendarServer.com/

Xtime Enterprise-class solution for reservations, appointments, scheduling, and resource management. http://xtime.com

Yahoo! Calendar Offers public and private event scheduling, to-do lists, weather, and integration with Microsoft Outlook and Palm devices. http://calendar.yahoo.com

Netscape Calendar Personal calendar tracks appointments, weather, horoscope, and events. http://calendar.netscape.com

SuperCalendar Personal and group scheduling service with emphasis on service to non-profit and affinity organizations. http://www.supercalendar.com

Calendars Net Free interactive web calendars for seamless integration into an existing web site. Enhanced, nested calendar systems also available. http://www.calendars.net

Hunt Calendars Free calendars for individuals and groups. Can send e-mail reminders prior to events. http://www.huntcal.com/

WebEvent Calendar and scheduling solution includes services for group and personal scheduling, event publishing, and resource management. http://www.webevent.com/

SmartCal Cobranded calendar for integration into existing websites. http://www.smartcal.com

HTMLCal Software allows users to create calendars for the web or Intranets. http://www.htmlcal.com/

Aufrance Associates Commercial web calendar software for sale or hosting. http://aufrance.com/calendar.htm

Great Hill Corporation Provides server-based calendar and scheduling software. Hosting available. http://calendar.greathill.com/

Groveware Technologies Inc. Web-based calendars and scheduling software for organizations of any size. http://www.groveware.com

Localendar.com Provides free calendars to integrate with existing websites. http://www.localendar.com

MeetingArranger Provides scheduling services for businesses. Wireless access available. http://www.meetingarranger.com/

ScheduleOnline Scheduling and collaboration for businesses, including options for use over an Intranet. http://www.scheduleonline.com

StuckIndoors Allows users to provide a database-driven events page on their own website. http://www.stuckindoors.com

Konektas Free open-source calendar web application for Windows NT based servers. http://www.konektas.com/konektas/CalendarTestPage.htm

KAOrg Online Organizer Windows NT based application for sale or rent. http://www.sawf.org/vkthakur/Business/productsbusiness/productsbusiness.htm#KAOrg