Columbus Guides - World Travel Guide: Comoro Islands - Tourist and business travel information with facts on climate, visa, health, passport, currency and customs requirements. - http://www.worldtravelguide.net/country/country_guide.ehtml?i=com
Lonely Planet - World Guide: Comoros and Mayotte - Comprehensive facts and advice for traveling along with background material on the culture and history of this African country. - http://www.lonelyplanet.com/worldguide/destinations/africa/comoros-and-mayotte
US State Department - Comoros Consular Information Sheet - Offers Background Notes 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_1091.html