PZ Meyers is asking some good questions. I admit I've hung around the world of spell-casting for a number of decades without ever learning any specifically atheistic spells.
More importantly, as Meyers asks:
Oh, and if Indianapolis schools [which ban "[s]ites that promote and provide information on religions such as Wicca, Witchcraft or Satanism. Occult Practices, atheistic views, voodoo rituals or other forms of mysticism, [...] the use of spells, incantations, curses, and magic powers ] ban sites that talk about "paranormal or unexplained events", why aren't they blocking all of the Christian sites? Jesus was one paranormal dude with unexplained magic powers, you know.
Good question, PZ.
Points to IPS, though, for capitalizing Wicca and Witchcraft, but points off for failing to capitalize Voodoo. (Honest, is there ANY rhyme or reason to their capitalization practices? And they're teaching our kids?)
Picture found here.