http://www.geographia.com/egypt/Sinai Nice overview of Sinai. Provides short information, pictures and some media files. Topics: History, religion, Bedouin culture, major sites, activities, diving, national parks, maps and travel info.
http://www.egyptheritage.com "… a synergy between architect and photographer; between writer and diver... to reveal Egypt’s riches to the world." (Quote from homepage). Numerous beautiful pictures, posters and brief information.
http://www.allsinai.info Description of the flora, fauna, geology, history and the Bedouin culture. Check out the 'Highlights' to know more about interesting destinations in Sinai.
http://allaboutsinai.com Focus more on the Sharm area. Check out the 'Places to see' and 'Things to do' sections.
www.eeaa.gov.eg The official website of the Egyptian Environmental Affairs Agency
http://www.sis.gov.eg/En/Tourism/Egyptall/Enviormental Established in 1954, Egypt State Information Service (SIS) is the nation's main informational, awareness and public relations agency. The link brings you directly to environmental tourism information. Other topics: history, politics, society and women, music (with numerous audio files), videos, press(cairo press review)...
http://www.gotoegypt.org/NatPark Brief information on Sinai's National Parks (with maps) and a navigation bar with local highlights.
http://www.seamore-travel.de/dahab Travel info, Visa, City map, Weather and Temperature, Eat and drink, Web Blog (in german, but an english version is under work)
http://www.dahab-4-all.com New website, with nice pictures and some general information about Dahab (including telephone numbers of doctors and emergency)
http://dahabwomen.com DahabWomen is an information board for everybody living in or moving to Dahab. The small fisher's village is growing and so is the information required.