Ok, I worked my Google magick, and this is what I found:

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"norns

Many mythologies speak of the weavers of fortune, three women who were older and wiser than the gods. Sometimes referred to as the three fates their woven webs governed the destiny of all things. This piece is an original design celebrating them.

In the Norse belief they were the Norns; Urda, Werdandi, and Skulda, who lived among the roots of the world tree Yggdrasil. The Greeks called them the Moirai. Clotho, Lachesis, and Atropos sang of the things that were, are, and will be. It both sets of myths these were the women who spun, measured, and cut the threads of a man's life.

The Celtic tradition gives us another powerful image of a three-fold feminine force, the Triple Goddess. As three who are one, this single deity encompassed the aspects of Maiden, Mother, and Crone. Linked with the phases of the moon she symbolized the perpetual circle of life, death, and rebirth. She was among the first of many triads that symbolized life's cycles."

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I found this here:
Enchanted Glyphs Norns Page

I didn't see any mention of the Triple Goddess aspect here, but you may find this page interesting:
http://www.earth-dancing.com/spiders.htm

And this is from an article:

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"Path of Triplicity

On this path, the Goddess takes the form of a Sacred Trinity. Many Pagans today know Her as the Triple Goddess — She who is Maiden, Mother, and Crone. Some Pagans work with a Goddess with three domains, such as Brigid, the Celtic Goddess of Inspiration, Smithcraft, and Healing. Sometimes, the Triplicity is a grouping of Three Goddesses, such as Hygeia (Health), Iaso (Healing) and Panacea (Cure-All), the Divine Daughters of Asklepios, the Greek God of Healing. Other Triplicities in Pagan religions include the Three Fates (Rome), Three Norns (Scandinavia), Three Graces (Greece), and the Three Mothers (Germany). In addition to developing relationships with each of the three forms, most Pagans on this path also connect with their Unity. "

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http://www.circlesanctuary.org/circle/articles/pantheon/GoddessPathways.html

Well, there is just a little bit that I could find. Hope it's a little helpful.

Rev. Heidi