csmonitor.com - Can your razor blade spy on you?: Radio frequency identification tags could simplify inventory, but they worry privacy advocates.
Forbes.com: A Hacker's Guide To RFID: Article on RFID tag security, with links to related articles.
Notags.co.uk: UK-based consumer group providing information on RFID electronic tagging of goods, plus comment opposing the technology.
Ross Mayfield's Weblog: RFID Hacks: Blog entry argues that the more people grapple with RFID to learn how it operates and how it can be manipulated, worries about its misuse should decrease.
Stop RFID: RFID privacy issues and news.
The Guardian: Tesco tests spy chip technology: Article in which Tesco gets accused of tagging packs of razor blades to track buyers.
The Nation: The Trouble with RFID: Long article about privacy concerns related to the technology.
Wikipedia: RFID: Article in this online open encyclopedia on this subject.