American Science and Surplus  www.sciplus.com A retail outfit carrying everything from toys and novelties to motors, tools and science kits.

Crystal River Gems  crystalrivergems.com Large selection of jewelry, fossils, crystals, and object d'art.

Discovery Scope  www.discoveryscope.net Scopes for magnifying small objects. Accessories and t-shirts for sale.

Edmund Scientific  www.edsci.com Offers a wide range of products for science enthusiasts.

Efston Science  www.escience.ca Science and astronomy superstore, with a wide variety of equipment and supplies for sale.

Electro-Chem-Technic  www.ectechnic.co.uk Makes and sells a novel small fuel cell, and offers hydrogen sources, accessories and materials for self-assembling. Based in the UK.

Enerdyne  www.enerdynet.com Optics, toys, garden products, Petoskey stones from Michigan.

Exploratorium Museum Store  www.exploratoriumstore.com Science toys and games, puzzles, gifts, books, classroom resources, charts and posters, videos, and software.

Explore  explore4fun.com Includes dinosaurs, flying toys, gyroscopes, astronomy, boats, globes, and solar kits.

Geographics  localgeographic.com Purveyors of decadence in academia, T-shirts, bumper stickers, and other paleontology and science-themed materials.

Microscope Pen  www.microscopepen.com Offers a 100x pocket microscope.

National Geographic Store  shop.nationalgeographic.com Features maps, videos, DVDs, books, magazines, globes, and telescopes.

The Nature Store  thenaturestore.com Books, videos and gifts with an emphasis on birds and butterflies.

Polarization  www.polarization.com/shop/catalog/index.html Everything polarized, from variable sunglasses to science kits.

Quality Items of Montana  www.qualityitemsofmontana.com Specializing in Oregon Scientific brand fitness and weather products.

The Science Company  www.sciencecompany.com Sells a selection of weather instruments, microscopes, telescopes, GPS and related accessories.

Science Fair Projects Online  www.terimore.com Purchase and download science fair projects with step by step blueprints.

Science Line  www.scienceline.net Offers a large variety of science items.

Science Shirts  www.rutnet.co.uk/customers/scienceshirts T-shirts and other apparel with a variety of science themes. Also offers mugs, mouse pads, and other accessories.

Store for Knowledge  storeforknowledge.com A variety of kits, models and toys related to several sciences.

Technika Gadgets and Gifts  www.technika.com/navpage/cat_gdgt.htm Source for scientific equipment, gadgets and gifts.

Unlimited Exotica  unlimitedexotica.com Rocks, minerals and fossils, cacti, succulents and carnivorous plants.

Web-shops.net  www.web-shops.net Offers a variety of scientific instruments, supplies, specimens, and kits.

Yellowstone National Park Shop  www.travelyellowstone.com/shop Assorted items, including books and apparel.