Technopagan
The real-life belief of Technopaganism is also present in Buffy the Vampire Slayer, although they are not mentioned beyond season two and with Jenny Calendar as the only one seen on-screen. She is seen as a low-level practitioner of magic and does not consider herself a witch. Even so, technopagans of the Buffyverse are not portrayed that differently from witches, they are just more familiar with modern technology and its relation to the black arts. Although not specifically addressed, the implication is that there is a difference in power levels between a technopagan and a witch, as Jenny states in the season one episode "I, Robot... You, Jane" in which Giles asks if she is a witch. Jenny's answer, "I don't have that kind of power" indicates that witches are able to perform greater feats of magic than other, more casual practitioners of magic.
Willow could be seen sometimes using modern technology and contacts to further her witchcraft (e.g. the internet). However she identifies herself as a witch rather than a technopagan.
Read more about this topic: Witch (Buffy The Vampire Slayer)