Cryptome, a private online archive of security-related documents, was served Tuesday with a subpoena asking it to turn over its user logs. The subpoena asked for the IP addresses of all visitors who viewed a specific page on the site. Cryptome's polite and succinct reply: we delete our logs daily.
I saw John Young, who runs Cryptome, speak last year. Deleting his logs fits in with his pragmatic approach to keeping the site alive: Cryptome is never the only site hosting a particular document. As he put it, "If you don't want to get shut down, make it so that shutting you down won't keep the information from getting out."
Cryptome's archive on the matter is here. The page whose visitors the grand jury was interested in is here.