Double Delta
- Geared towards recreating a classic, but is becoming quite a simulator in the process. Provides information, screenshots and news.
- http://doubledelta.org.uk/contents.htm

Arenalogic
- Offers news, downloads, and discussion.
- http://www.arenalogic.com/

YS Flight Simulation
- A free and open source flightsim Realism Pack. Offers demos and development files.
- http://www.flightsimhq.org/ysflight/

CFSIP Games
- Contains flight IP games and design forums.
- http://www.cfsipgames.com/phpbb/

AirStrike
- A 2D dogfight game in the tradition of the Intellivision and Amiga games 'Biplanes' and 'BIP'. Includes screenshots, information, and downloads.
- http://icculus.org/airstrike/

AIRLINE - Aviation Business Simulation
- Game information, downloads and screenshots.
- http://www.airlinesimulation.com

OpenGC
- A open-source tool for developing glass cockpit displays for simulated flightdecks.
- http://opengc.sourceforge.net/

VOR Navigation Simulator
- An online navigation simulator game (Requires a java enabled browser).
- http://www.relia.net/~george/aviation/sim/

Aerofly
- A realistic model aircraft flight-simulator for Windows 95 and 98.
- http://www.ipacs.de/

ACM - Air Combat Simulation
- Downloadable simulation with information and services.
- http://websimulations.com/

Vertigo Flight Simulator
- Public domain flight simulator, information, downloads, and screenshots.
- http://www.astro.ku.dk/~norup/vertigo/vertigo.html

Valkyrie Simulation Project
- Contains news and information.
- http://valkyrie.sourceforge.net/

SourceForge: Valkyrie Simulation Project
- Flight Simulation for vehicles from the Macross Universe (aka Robotech).
- http://sourceforge.net/projects/valkyrie/