HF/DF An Allied Weapon against German U-Boats 1939-1945
A 2004 paper on huffduffing.
Link archive: October 6th, 2009
Ident Engine
Glenn has taken Google's Social Graph API, YQL and various parsers, and he's wrapped it all up in one JavaScript library. The demos are mind-boggingly impressive.
@font-face
A quick, slick primer on font linking.