It is a religion. If you are thinking that Wicca is all about casting spells, you have been wrongly informed. As I have mentioned in my main page, Alot of people get the notion that Wiccans practice evil Magic, and worship satan, this is about as far from the truth as possible. Wiccans practice only good magick, and follow the law of three, which is basically whatever you do, it comes back to you three times as powerfully. I've gotten some E-mails from people that seem to have this idea that Wiccan spells allow you to float above ground, become invisible etc.
Most Wiccan spells are more like rituals.
Wicca is based around the goddess and god, who represent the female and male aspects of nature. The Goddess and God take the form of many deities, in different traditions and with different people. Unlike some religions, Wiccans do not try to recruit new members, nor do we preach that ours is the one true path. Everyone is so unique that one path cannot possibly suit everyone.