This is the story of two internet activism campaigns. Both were launched on March 5. Both sought to gain attention and action for victims of human rights abuses in Africa little known around the world. One got more than 100 million online views in six days. The other got little...

holocaust: ...Complete consumption by fire...complete destruction, especially of a large number of persons; a great slaughter or massacre.

- Oxford English Dictionary, 1991.

Photographs of the burned, blackened bodies of the victims of last week's prison fire in the Honduran city of Comayagua are almost beyond comprehension. When I saw...