Waterberg:

Ant's Nest and Ant's Hill - www.waterberg.net

Horizon Horseback - www.ridinginafrica.com

Waterberg Academy - www.waterbergacademy.co.za

Waterberg Biosphere - http://en.wikipedia.org/wiki/Waterberg_Biosphere

General:

Baber Family Tree - http://baberfamilytree.org/

Clive Walkers trust founded to help endangered wildlife - www.ewt.org.za

Car Hire Company - www.pender.co.za

Horizon Horseback Safari - www.ridinginafrica.com

Cape Town Accommodation & Hotels - www.capetown-direct.com

Astronomy:

Johannesburg Planetarium - www.wits.ac.za/planetarium

Astronomy Kit Supplier - www.eridanusoptics.com

Largest Telescope Manufacturer in World - www.meade.com