Remember PKZip?

Even if you haven't been around computers long enough to remember the zip file-unzipping freeware named PKZip, there's a chance you'll enjoy reading this whitepaper describing the basics behind file compression:http://www.pkware.com/documents/resources/whitepapers/ROI.pdf

The author of PKZip also has a tragic, but interesting bio available from wikipedia.
Another link in case you want to learn more about the author (with the initials PK :), Phil Katz.

Hijacked botnet challenges ethics

An interesting story here regarding theft of something already stolen:
http://www.internetevolution.com/author.asp?section_id=689&doc_id=176330

The author gives interesting background on the origin of the word "vigilante", and raises some interesting ethical questions and concerns regarding law enforcement online.