CIA - The World Factbook: United States Pacific Island Wildlife Refuges: Features map and brief descriptions of the geography, people, government, economy, communications, transportation, military and transnational issues.
Encyclopedia of the Nations - Howland, Baker, and Jarvis Islands: Provides information about the country's geography, people, government, economy and tourism. From Thomson Gale.
Jarvis Island: A page dedicated to a small island in the middle of nowhere. Includes details of its history and biology and an idea for turning it into a tropical paradise.
NationMaster - Jarvis Island: Profile includes information for various aspects of the country, with a special emphasis on statistics and rankings.
Wikipedia - Jarvis Island: Hyperlinked encyclopedia article provides an overview of the island's history and geography.