If you think Pagans are all Satanists, please go to WitchVox's Witch/Wiccan F.A.Q.s immediately. For the rest of you, if you want to find out about Paganism, firstly, don't trust everything you read. The best and worst information is on the Internet. That is why I refer people directly to sources I trust.
The best source for scholarly information is The Pomegranate, a peer-reviewed academic journal for Pagan Studies (within Religious Studies).
The Witches' Voice (WitchVox): "NeoPagan News/Networking on the Net Since 1997." This site is very good for more specific information about Wicca and Wicca-like religions. Specifically:
Isaac Bonewits' Homepage: Isaac Bonewits is one of the most influential Pagans ever. He discusses almost every important point of modern Paganism somewhere on his site. The most pertinent bits: