When Sam and I were in France recently, we picked up a Charmed magazine because it had a big poster of Shannen and of Holly. When we flicked through it we noticed that the website was mentioned! It is on the postcard of Shannen which was inside. Here is the scan of the postcard, front and back:
http://www.shannen-doherty.net/ShannenPostcard.jpg
And if anyone is curious to see which magazine it was in, here is a scan of the cover:
http://www.shannen-doherty.net/SeriesSpecialCover.jpg
Dianna