This article contains links to selected Web resources I have found to be informative and useful for using Linux in Amateur Radio. Web sites get revised and even disappear, so if you find any dead links, please let me know by sending a message to my call sign at arrl.net.
OH8STN has a site that emphasizes off-grid and emergency operations. He uses Linux as much as possible. His excellent Raspberry Pi HOWTO articles and videos cover a wide range of topics. I found this video on a packable station built around the Pi to be particularly informative.