Astronomy and space shuttle simulator:
Very professional FREE space flight simulator that can be used as an interactive tool to teach students the priciples of orbital mechanics and mathematics of space flight:
http://orbit.medphys.ucl.ac.uk/orbit.html
Basics and mathematics of space flight (NASA):
http://www2.jpl.nasa.gov/basics/
Rocket and space technology:
http://www.braeunig.us/space/index.htm
Flight Simulator sites:
An online shop with lots of software and hardware:
http://www.simw.com
Some flight simulator forum sites where you can subscribe and post questions:
http://www.avsim.com/
http://www.simhq.com
http://www.f4support.com/forums/index.php
A very interesting site for fs2004 with tutorials, designed by John Goodwin:
http://www.john-goodwin.pwp.blueyonder.co.uk/index.html
One of my favorite download sites for FS. Registration required but at least it's free:
http://www.flightsim.com
The official Microsoft Flight Simulator site:
http://www.microsoft.com/games/flightsimulator
PMDG offer very realistic aircraft (payware):
http://www.precisionmanuals.com/
Who likes those fake microsoft airlines in the sim? Download real world airline aircraft&flightplans here(AI traffic):
http://www.projectai.com/
Want a GPS integrated in your instrument panel and crew&pushback sounds?
http://www.acsoft.ch/Flight_Simulator/flight_simulator.html
Lots and lots of downloads and all for free!
http://www.simviation.com/menu.html
Program that enables you to use your headset and talk to everyone else on multiplayer: http://www.goteamspeak.com/index.php?page=news
Virtual airline site where you can download stuff, check the calendar for upcoming flightsim events and ATC sessions on teamspeak and much more:
http://www.flightbase2000.com/
Very interesting site where you can download guides for Falcon 4.0/Allied Force/Open Falcon F-16 simulator:
http://www.f-16.net/downloads_f4manuals.html
Aviation sites:
Download free aircraft checklists and handling notes on this site:
http://freechecklists.net/
Lots of pics:
http://www.airliners.net/
Joint Aviation Authorities:
http://www.jaa.nl/
Jeppesen products :
http://www.jeppesen.com/wlcs/index.jsp?section=home&content=index.jsp
Excellent site with cockpit photos of all panels and their description:
http://www.meriweather.com/flightdeck.html
Cockpit pictures of US military aircraft:
http://uscockpits.com/
Pilot shop:
http://www.transair.co.uk/
Download and view the Air Crash Investigation episodes here:
http://aci.110mb.com/
Flight planning site for the US containing aviation charts, weather and airport database:
http://www.flyagogo.net/
Another US flight planning site:
http://www.navmonster.com/apt/KBOS
Google Earth for pilots blog:
http://www.gearthblog.com/blog/archives/2008/04/google_earth_for_pilots.html
A great and affordable program with moving map for your computer as well as smartphone, that can be used with an external or internal GPS receiver with an up to data aviation and weather database of the entire world and much, much more:
http://www.pocketfms.com/
A very good electronic pilot logbook, called mccpilotlog, designed by a colleague of mine and for which I am Beta tester:
http://www.mccpilotlog.net/
Aerodynamics and principles of flight sites:
http://sites.google.com/site/aerodynamics4students/table-of-contents
http://www.av8n.com/how/
How to fly a holding:
http://www.pilotlist.org/zahar/howto.htm
Aircraft navigation site in Dutch:
http://www.localnetnet.be/deel.1.htm
Aviation weather sites:
Cool weather site!
http://euro.wx.propilots.net/
Other weather sites:
http://www.weatherimages.org
http://www.wmo.ch/index-en.html
http://www.wolkenatlas.de/
http://www.wxsupport.com/
Volcanic ash advisory centers:
http://www.metoffice.gov.uk/aviation/vaac/index.html
Aircraft icing site:
http://aircrafticing.grc.nasa.gov/courses.html
Other sites:
A friend's music site and his webshop at Kapaza:
http://gerardusch.skynetblogs.be/
http://shop.kapaza.be/VanPark/
"Lissa explains it all", A cool site about webdesign, written by a smart kid that even came on CNN:
http://www.lissaexplains.com/
Upload your pictures and videos for free to this site and then make links to them in forums, your website or share the pictures via email to your friends and family:
http://photobucket.com/
How stuff works:
http://electronics.howstuffworks.com/gadgets/travel/gps4.htm
Google maps on your smartphone needs an online internet connection. However there is a workaround to use maps and satellite pictures in combination with GPS on your smartphone without GPRS connection or internet costs:
http://www.dotsis.com/mobile_phone/nokia-s40-1st-2nd-3rd-5th-6th-editions/180123-simple-tutorial-use-google-maps-your-mobile-offline.html
Here you can download manuals of most games:
http://www.replacementdocs.com/news.php