The Nonprofit Bookstore
- Proceeds benefit education nationwide and 5% of each sale goes to the school or college of your choice.
- http://booksxyz.com/search.php?q=geology&x=0&y=0

Frank Mikesh Natural History Books
- Rare and out-of-print natural history, hunting, and fishing books, as well as wildlife art books.
- http://www.natscibooks.com/

PaleoPublications
- Used, some rare, works in Paleontology, Geology, Mineralogy, and related subjects.
- http://www.paleopubs.com/

Earth Science Books
- A great place to find scientific books with a strong British influence.
- http://earthsciencebooks.com/

Watered-Down Electricity
- Information, text and graphics about electricity.
- http://www.sykart.com/keenie/electron/

Subbuteo Books
- Provider of natural history and wildlife books, maps, videos, compact disks and cassettes.
- http://www.wildlifebooks.com

WMNH Giftshop
- Geology books, slides, and prints available from the World Museum of Natural History giftstore.
- http://www.wmnh.com/wmgspub.htm

Green Nature Books
- Supplier of quality nature books on tortoises, turtles, orchids and other books by Richard Cary Paull.
- http://www.greennaturebooks.com/

GeoScience Books
- A variety of geoscience books for sale, including bargain books.
- http://www.geosciencebooks.com/

Geological Society Web Shop
- Publications from the Geological Society of America.
- http://bookshop.geolsoc.org.uk

Ed Rogers Rare and Out of Print Books
- Used geoscience books for sale.
- http://www.geology-books.com/

Double Decker Press
- Road guides to National Parks in the western U.S. and Hawaii.
- http://www.doubledeckerpress.com

AGU Book Catalog
- Books available from the American Geophysical Union
- http://www.agu.org/cgi-bin/agubookstore

North Woods Field Guides
- Educational field guides for the identification of animal tracks, trees, wildflowers, and constellations.
- http://www.northwoodsguides.com

Sapsucker Books
- Catalog of used, out-of-print, hard-to-find, and selected new natural history books.
- http://www.sover.net/~sapsbks/

2Neat Books
- Specializes in USGS professional papers, offprints of scientific publications and magazines.
- http://woodenski.com

NHBS
- Online natural history, environment and science bookstore.
- http://www.nhbs.com/

Flora and Fauna Books
- Specializing in natural history and related scientific subjects as well as art and human history books.
- http://www.ffbooks.com/