World66 - Tonga
- Travel guide based on reader-submitted information.
- http://www.world66.com/australiaandpacific/tonga

US State Department - Tonga Consular Information Sheet
- Offers general country and travel information including entry and exit requirements, safety and security, crime, health and transport.
- http://travel.state.gov/travel/cis_pa_tw/cis/cis_1042.html

Lonely Planet - World Guide: Tonga
- Comprehensive facts and advice for traveling along with background material on the culture and history of the country.
- http://www.lonelyplanet.com/worldguide/destinations/pacific/tonga

iExplore Community - Tonga
- Adventure and experiential travel agency provides traveller-written journals, reviews and photos.
- http://community.iexplore.com/planning/destinationHome.asp?LocationID=306

Columbus Guides - World Travel Guide: Tonga
- Tourist and business travel information with facts on climate, visa, health, passport, currency and customs requirements.
- http://www.worldtravelguide.net/country/country_guide.ehtml?o=281&NAV_guide_class=CountryGuide&NAV_Region=281

Tonga Visitors Bureau
- Features history, business, activities, culture, facts, travel and accommodation within the Kingdom.
- http://www.tongaholiday.com

Tonga Travel and Beach Guide
- Tonga travel and vacation information with maps and pictures of Tongan beaches, resorts, hotels and islands.
- http://www.tonga.islands-beaches.com