Calendars.com
Over 3000 calendars and related gift items.
http://www.calendars.com/

Patent Calendars
Fascinating ideas from the genius of past and present.
http://www.dewray.com

The Scottish Collection
A designer and manufacturer of a range of calendars each year for individuals and businesses to enjoy the beautiful Scottish scenery.
http://www.scottish-calendars.co.uk/

PrimeTimes Calendars for Fishing and Hunting
A variety of calendars showing the serious outdoorsman the best times of each day and best days of each month to go fishing or hunting anywhere in the world.
http://www.primetimes2.com

Kanin Press
Travel calendars and limited edition prints and notecards featuring the East Coast region.
http://www.kaninpress.com

The Mystic's Wheel Of The Year
A multifaith calendar reflecting eco-egalitarian spirituality.
http://www.wheeloftheyear.com/

Gardening by the Moon
This web site offers a unique gardening calendar that shows the best days to plant by the sign and phase of the moon. Available for three different length growing seasons.
http://www.gardeningbythemoon.com

Astro Tables
Calendars showing the best days and times to fish and hunt in your area. Use by over 4 million outdoorspeople.
http://www.primetimes2.com/pages/4-astrotables.html

The Mayan Calendar
Features black-and-white photographs of Mayan monuments and architecture. Each day is identified by its Mayan date, in glyphs and in translation. Order online.
http://www.mayan-calendar.com

My Name Day
Including a number of popular first names, with their own appointed "name day". Includes photographs of landscapes.
http://www.mynameday.com/

Arun Bros
Makers of a range of wall and table calendars, featuring life in India. Bulk orders only.
http://www.calendarsfromindia.com/

Browntrout Publishers
Calendars featuring fine art photography of dog breeds, lighthouses, nature, animals, and cars.
http://www.browntrout.com/

All Calendars
Featuring a large selection of special interest calendars including animals, gardens, nature, sports, and travel.
http://www.allcalendars.com/

MegaCalendars
Photo themes such as animals, celebrities, sports, flowers, or science-fiction. Also offers desk calendars and diaries.
http://www.megacalendars.com/

Celestial Calendar
Perpetual calendar created by Brazilian artist, Martha Washington.
http://www.celestialcalendar.com/

The Ecological Calendar
Offers a calendar arranged by seasons instead of months. Each of the four wide panels contains illustration and information pertaining to its season.
http://www.ecocalendar.info/

Gladstone Media
Featuring desk and wall calendars, with subjects featuring aviation, nature, lighthouses and animals.
http://gladstonemedia.shop.musictoday.com