The National Geographic Store (natgeostore.com) is offering a great selection of gifts for

Some of their picks include:
Personal GPS Tracker, $89.95
Mini Weather Clip, $49.95
Digital Travel Luggage Scale, $30.00
Audubon BirdCam, $159.00
Visions of Earth book, $40.00
Journeys of a Lifetime book, $40.00