Some tips are specially for watching in Austria and Southern Germany because the Latitude decides if it is possible to see the Aurora.    

See my pictures of the aurora borealis on 20.11.2003 in Mattsee near Salzburg (A).
 

X-ray flare and Geomagnetic storm monitor
Solar X-rays:
Geomagnetic Field:

Solar Activity Monitor

Estimated Planetary K Index

SAM-Europe Realtime-Online-Magentometer

Polarlicht Sichtbarkeitsoval

Current Solar Data (NOAA GOES Detail)

Current Solar Data (spacecraft, terrestrial)

SpaceWeather.com

METEOROS.DE  - Interessante Themen, Links und Polarlicht-Forum

Polarlichtseite - Thomas Sävert

polarlichtinfo.de

polarlichtvorhersage.de

NOAA GOES Archive

Auroral Obervation Network

SEC Tips on viewing the Aurora

IR-Wetterbild Europa

Wetterkarte Europa

Archive data

SatEnv Data from Oct, 30 2003  (Aurora in Austria!)

SatEnv Data from Oct. 31, 2003  (Aurora in Austria!)

SatEnv Data from Nov. 20, 2003  (Aurora in Austria!)