All Archaeology
http://www.allarchaeology.com
A massive directory of archaeology-related sites, categorized by culture, theme, etc.
Darwin Fish and Evolve Fish
http://www.evolvefish.com/
A collection of takeoffs on the ubiquitous Jesus fish and related material, this campaign can't seem to decide if it's completely anti-religion, or just anti-dogma. Personally, I find evangelical atheists just as annoying as evangelical Christians. But it's worth checking out, nonetheless.
GaiaMind
http://www.gaiamind.org/
A fairly new-agey project involving large numbers of people around the world meditating together in an effort to "awaken" Gaia. Seems to be based on the anthropocentric conceit that humans are somehow destined to act as the mind of the Mother. Now let's see if I've got this straight: a bunch of uppity primates who still can't get it together to stop fouling the air and water, wiping out other species or breeding like bunnies on Ecstasy are somehow qualified to start acting as the brains of nature? As Granny Weatherwax would say, pull the other one, it's got bells on it!
How to Talk New Age
http://www.well.com/user/mick/newagept.html
A very amusing dictionary of new age jargon, written with an appeallingly warped sense of humour. Example: "The Akashic Records are sometimes confused with Santa Claus's files which, of course, tell him if you've been 'naughty or nice'. They are not the same. With Santa's records, you at least stand a 50% chance of getting goodies."
PARAseek.com - The Paranormal Search Engine
http://www.paraseek.com/
One of the growing collection of specialized search engines out there, this one indexes all manner or weird and wonderful things, from alternative religions to conspiracy theories to "Xtreme science". It may be bizarre at times, but it's never boring... And they've now added some new features like discussion forums and a paranormal researcher registry.
Something Wicked This Way Grows: Gothic Gardening
http://www.gothicgarden.net/
Irresistible - plans for various sorts of gothic "theme gardens" from "Growing your own Grave Goods" to "Gardening for Bats", recipes for natural black dyes, gothic sundial mottos, how to say "I Hate You" with flowers, and all sorts of creepy plant folklore, all tinged with deliciously dark humour. One of my all-time favourite sites.
The Labyrinth
http://www.georgetown.edu/labyrinth/
A mediaeval studies database housed at Georgetown University, with manuscripts in French, Iberian, Italian, Latin, Middle English and Old English, plus modern secondary sources as well. Includes special collections on mediaeval women, the Crusades, Arthurian studies, and more.
The Witching Hours
http://www.shanmonster.com/witch/
A historical site on the witch persecutions -- not on Wicca or other forms of neopagan witchcraft. Includes info on deities allegedly worshipped by mediaeval witches, references to faeries, shapeshifters and familiars in the witch trials, an analysis of the misogyny of the era, a very jarring account of the author's own experiences of persecution in a small town, and more. And for something more upbeat, check out the links to her very funny home page (with features like "Jesus was Gother Than You"...).
Truetype fonts by Curtis Clark
http://www.csupomona.edu/~jcclark/fonts/
Ogham, Futhark, Linear B, phases of the moon and occult dingbats, all free for personal use, and available for both Macintosh and Windows.
Yamada Language Center Font Archive
http://babel.uoregon.edu/yamada/fonts.html
A wide collection of interational fonts, including some pretty esoteric ones, both modern and ancient - everything from Esperanto and American Sign Language to Coptic, Egyptian Hieroglyphics and Old Gaelic. Predominantly Macintosh, but some Windows fonts as well.