Europe for Visitors - Includes illustrated articles and annotated Web links. Accessible Europe Massimo Micotti and his local partner agencies can set you up with an accessible cruise, hotel accommodations, a rental van, or a guided tour for up to 6 handicappedtravelers.
Most tours are in mainland Europe, but some are further afield.
Alp Magazine works. Photos, ski articles, news, a linkable resort list, and a cool database of the mountains they call Yodelei-hoo. Info on everything from climbing to snowboarding. Alpine Answers - Experience the Alps in the summer. This site had listings for five European countries the last time I checked.