http://www.cesnur.org

Some interesting articles:

One on how common non-Abrahamic belief systems have become, giving Buffy the Vampire Slayer as an example; they even infiltrate mainstream Christianity, judging from the consternation of some Catholic theologians. Buffy is an example here because of who she takes orders from.

http://www.cesnur.org/2001/buffy_march01.htm

One on how neopaganism differs from New Age; the author concludes that they have had separate origins and development:

http://www.cesnur.org/2001/london2001/kranenborg.htm

Anything with Buffy in it is cool...

However, just to nitpick...

Willow is Jewish, not Wiccan. She is a Jewish witch/sorcerer, not a member of the new religion.

Thanks for the link!