My Sentiments Exactly  
   Offers a wide selection in a variety of styles and themes.
   http://www.sentiments.com/

My Stamps by Cathy Daulman  
   Creative rubber stamps and exclusive products for rubber stampers, calligraphers, mail artists and paper artists.
   http://mystamps.bizland.com/

Magnolia Station  
   Folk art stamps, stationery, and hang tags.
   http://MagnoliaStation.tripod.com/stamp3.html

Mostly Animals  
   Rubber stamp catalog, projects, samples, roll-a-graph.
   http://www.mostlyanimals.com/

The Merry Stamper  
   Specializes in images of angels, and hearts and bears. Offers grab bags, sayings, projects, acrylic mounting system, and links.
   http://www.merrystamper.com/

Mirkwood Designs  
   Offers unmounted rubber stamps and theme plates.
   http://mirkwooddesigns.com/

My Heart Stamps for You  
   Rubber stamps, radiant pearls, acrylic mounting system, and accessories.
   http://www.myheartstamps4u.com/

Magenta  
   Rubber stamps and scrapbooking supplies. Offers design stamps, pewter stickers, paper stickers, and stamping accessories.
   http://www.magentarubberstamps.com/

Meer Image  
   Offers handcrafted fine art rubber stamps designed and made by Steven Vander Meer in Arcata, California USA. Available in mounted and unmounted.
   http://www.meerimage.com/

Mohr Stamps  
   Includes world themes specializing in Persian images. Also cushion backing and tags.
   http://www.mohrstamps.com/

Mrs. O'Leary's  
   Offers a selection of stamps, classes, techniques, samples, and accessories.
   http://www.mrsolearys.com/