Short independent film of the story on YouTube.
A trailer for the 2006 film.
A photo of Kafka during his childhood years (possibly in 1888).
A photo of Kafka just after receiving his law degree in 1906.
The famous last photo of Kafka.
The original 1948 review of the Muirs' first English-language translation of "In the Penal Colony."
The only original Kafka manuscripts currently available online. These selections from the manuscript of The Trial, the novel Kafka was writing when he wrote "In the Penal Colony," allow you a glimpse of his handwriting.
A very rich website, with author biography; free, translated texts of some of the stories; the stories, photographs of manuscripts (none of "In the Penal Colony"); collections of essays and articles; and more. The project itself is geared towards releasing definitive German editions of Kafka's works, which are also on the site.
Another good general website, with biography, links to reviews and criticism, lists of Kafka-related events, photos, and more.
A site with a biography, a couple of articles, and the text of some of Kafka's letters.