Invent Rainbows Using Overhead Projector:
See Rainbow Demonstration

Portrait of Denali rainbow poet and
outdoor writer John Allen sent in by Wendy McManus

Rainbow Links:

World Database of Happiness
Enchanted Ceiling
Everything you ever wanted to know about rainbows (Great video)
Could it be the end of the rainbow?
Peter Erskine
Photo Shop Tutorial
How to photograph a rainbow

Truly Magical Rainbow Sightings:

Fire Rainbow
Rainbow Chasers (Self-described as 'The brilliance of refracted light and those who chase it.')

Catalina's Rainbow