Aircraft and Aviation
- Luftfahrt-Bundesamt (LBA, Federal Office of Aviation)
- DAeC (Deutscher Aero Club e.V.)
- eddh.de
- DFS ( German Air-Traffic Control)
- Deutscher Wetterdienst (German Weather Service)
- Wetterklick.de
- Flugwetter.de
- Luftrecht-Online
- Siebert Luftfahrtbedarf (Aviation products)
- AOPA-Germany (Association of pilots and aircraft owners from the UL to business jet)
Restaurants and accommodation