There's a new group blog called ATAC: Abusable Technologies Awareness Center, for discussing technology that causes concerns about privacy and security:

Welcome to the Abusable Technologies Awareness Center (ATAC). Our mission is to provide current and accurate information about technology that oversteps its bounds. Whether the concerns relate to unexpected privacy violations or inappropriate security, ATAC serves as a clearinghouse for informed discussions. Our panelists, all respected Computer Scientists introduce topics as new disclosures are made, and the forum is open to the public for discussion. This site is hosted at the Information Security Institute at Johns Hopkins University.

Contributors include Bruce Schneier and Ed Felten.