Tu-144 sites:

• Sergei's site Testpilot.ru - Russian.
• Club of Heroes of the City of Zhukovsky - Save the Tu-144 (Russian).
• Russianplanes.net - Tu-144 list with full info of all aircraft (Russian).
• GlobalSecurity.org - Tu-144's info in the leading site of defense, space and intelligence.
• Airbase.ru - Russian based site.
• Tu-144 in tripod.com - The first supersonic jet of passengers of the world.

Aviation sites:

• Airliners.net - The best airliner resource and photo library on the internet.
• Jetphotos.net - A close second to Airliners.net
• Planepictures.net - A close second to Airliners.net
• The 'AirNet' Web Site - All the Aircraft links you ever required.
• Aviation Safety Network - The complete resource on aviation safety and air crashes.
• Concorde SST - The Definitive Concorde Aircraft Site on the Internet.
• The Planeboys Spotters - Unofficial site about Berlin airports.

Museums:

• Russian Air Force Museum - 04-1's Home at Monino.
• Russian Air Force Museum - Oficial site (Russian).
• Auto & Technik Museum - 07-1's Home at Sinsheim, Germany.

Former Tu-144 operators:

• Aeroflot - Russian Airlines
• Public Joint Stock Company «Tupolev»
• NASA
• NASA - Info about the experiments.
• NASA - Tu-144LL SST - Photo Collection Contact Sheet.