Coral Content Distribution Network
"This is the Wiki for CoralCDN, an open peer-to-peer content distribution network." "In these pages, you'll discover how you can use to CoralCDN to help lower your bandwidth bills, keep your content highly-available during load spikes, and make your browsing experience faster when accessing popular pages."
Anyone can use this service to help reduce the Slashdot effect. The wiki documents how.