The New York Calendar Co.
Manufacturer of custom calendars, diaries and planners, including: advertising, executive, pocket, desk, appointment and wall calendars, diaries and planners.
http://www.nycalendar.com

AVP Calendars India
Anil Vishal Printers are leading manufacturers & exporters of international standard calendars from India. Different types of calendars ranges from - desk/table top, wall hanging, relegious, diwali, embossed, plastic, customised & many more type of calendars, posters, packaging, lables, table mats & offset printing jobs. AVP calendars give you maximum gift and utility value and are available in an extensive range. Our products can also be customized and personalized to suit your specific requirements. Calendars besides being very functional in our day-to-day living have long been a favourite and very effective advertising tool.
http://www.avpcalendars.com/

Appointment 2000
Designed for any business centered on scheduling appointments. Stores customer information that will be accessed easily. Other features include customer's appointment history, daily sign in sheets and mailing labels. Automatically print appointment reports every morning. [Win 95/98/Me/NT]
http://www.zds.iwarp.com/

Types of Calendars
A discussion of types of calendar: lunar, solar, lunisolar, rule-based, etc.
http://www.hermetic.ch/cal_stud/lunarcal/types.htm

Calendars of the World
A calendar coverter to convert between about 20 different worldwide calendars. [Freeware]
http://www.rumblefische.com/calendars/

Calendars for the Web
Create HTML table or image map calendars. [Microsoft Windows]
http://www.greathill.com/calendar.htm

Yearbox Promotional Calendars
Fully-customized promotional wall calendars and desk calendars using your photos, corporate logo, and text. Great for trade shows, school fundraisers or as customer appreciation gifts!
http://yearbox.com/business.html

Hunt Calendars
Web calendar service featuring e-mail reminders, group calendar access control, event search, custom calendar headers, event categories and e-mail lists.
http://www.huntcal.com/

Calendars Net
Display and edit your own calendar of events. Let others post and view events or not. Link your calendar to your web site. View and print out calendars by the day, week, month, or year.
http://www.calendars.net

iCalShare
iCalShare is the largest directory of iCalendar files on the web, with over 2500 calendars
http://www.icalshare.com/