Cryptome is a website run by the mysterious (in the sense that we've never actually managed to meet) John Young. It has long been a cornerstone of the movement to publish government secrets that shouldn't be secret, especially about communications interceptions and cryptography.
Cryptome has done sterling service in reprinting published works that governments tried to suppress. It's been a thorn in the side of the UK government, for example, which has tried to recall and suppress published books. Every week is a small trove of interesting documents, most from public sources but some from anonymous, that have to do with spying or national security.
That's the heroic part. Now for the slightly creepy part.