Love stained glass???

I am thinking of starting stained glass but find not too many sites. I am thinking about taking a course. I found a new group that once I get started I might join the link for it is

http://groups.yahoo.com/group/glass-a-ho…
I am not sure how hard stained glass is to do. Thought I would share the site address for those of you who already do it but have questions. I know I will have lots.