http://www.paraglidingspots.com/english/default.aspx

Paraglidingspots.com is a non-profit website for paragliding (and
hang gliding) pilots who want to discover new flying areas. With a simple
download you get a free of charge 'KMZ'-database with so far over 15.000
international launches and landing zones, for browsing with Google Earth.
Additionally, I offer waypoint files for GPS navigation instruments. With
paraglidingspots.com you get the complete picture, worldwide.

I use Google Earth, because it is free, and it is the best for this purpose. The
3D terrain view and the possibility to load and view XC cross country flights
lead to a quick understanding of new areas. On top, you can calculate a go-to
route and explore the surroundings with Google Earth.