Paganism for Beginners - Paganism for Beginners has a basic overview of paganism by the author of the website along with links to meditation, healing, alternate states of consciousness and recommended reading amongst other things.
Paganism, Past and Present -This website has information about the history of Ancient Greek, Ancient Roman, Druidism, Neo-Paganism, Wicca and Witchcraft,Charge of the Goddess, Neo-Druidism, Roman Gods and Greek Gods. While it is not a comprehensive history, it may be an interesting starting point for further research.
Religious Tollerance.org - The section of the site this link goes to explores the different meanings of the word 'pagan' and 'paganism' throughout the ages.
Texarkana Area Pagans and Witches - If only half of the topics on this site are useful then it is worth a look. The site doesn't stick to one kind of paganism, there are pages up there on a range of pagan related faiths.
The Mage - This site has a diverse spread of religious beliefs alongside resources about such figures as Nostradamus and Aliester Crowley.
Zaby's Book of Shadow- Is an online resource for witches it seems from the point of view of an American Wiccan. There is information about the history of paganism as well as resources on things like herbalism, tarot, and crystal reading.