About halfway down - my first mention! 

http://www.guardian.co.uk/travel/2007/oct/20/saturday.travelwebsites 

Skiclub of Great Britain...

http://www.freshtracks.org.uk/skiclub/news/story.asp?intStoryID=5112 

Although Pistepals isn't just for singles skiing holidays, we had a couple meet and marry from this trip!  So I don't normally market the trips at Single Skiers, rather Solo skiers or Solo Travellers.