I searched Amazon and found the series is by Cate Tiernan. So I googled her and found www.sffworld.com/author/1227.html and www.fantasticfiction.co.u...e-tiernan/ which says
Wicca Series
1. Book of Shadows (2001)
2. The Coven (2001)
3. Blood Witch (2001)
4. Dark Magick (2001)
5. Awakening (2001)
6. Spellbound (2001)
7. The Calling (2001)
8. Changeling (2001)
9. Strife (2002)
10. Seeker (2002)
11. Origins (2002)
12. Eclipse (2002)
13. Reckoning (2002)
14. Full Circle (2002)
15. Night's Child (2003)

Oh and I found a general review here www.greenmanreview.com/sweep.htm
Quote:
The Sweep series is a first-person narrative from the point of view of a young girl exploring a new lifestyle. Morgan Rowlands is a good student, a devoted daughter, and a Catholic. Her life is progressing in a socially acceptable, fairly predictable manner until one day she meets a boy who changes everything for her.

At all times, Sweep is romantic. While adults may disparage them and though precious few seem to last into adulthood, teen relationships feel very important while they're happening. Rather than talk down to teens in love, Sweep enthusiastically allows young readers to believe that it's possible to find their soul mate at any age.

The series is unfaltering in its intensity. There is no comic relief; indeed, there is little relief of any kind from the gravity of the story, the almost constant sense of desperation, fear, and anxiety that is amplified by the first-person perspective.

Sweep promotes an alternative lifestyle. And Sweep affirms what most teens already know: in spite of what their parents and teachers may insist, there are more important things in life than school and grades.

Finally, the protagonist is easy to relate to. In spite of what the cover art of Awakening shows us, the text consistently reminds readers that Morgan is hardly beautiful.
OMGosh - the way some people complain about Harry Potter encouraging people to try Wicca - I bet they'd hate this book! :eek