Coral is a system to distribute http requests through a P2P-like network of volunteers. In layman's terms it means that when a site struggles under the load of a sudden spike in requests, servers on the Coral network can help by serving out the site instead. Coral requests the page once, and then all Coral servers can serve it out without needing to contact the original site.

So, the next time a site you're trying to access gets slashdotted, you can use this handy bookmarklet (drag it into your bookmarks and click it when you need it) to access the site via Coral.

Credit for the bookmarklet goes to Keywords