The marketplace gives consumers access to more than 300 products created using a 3-D printer.
Few of the Web's top 100 shopping sites adequately guard consumer privacy, charges a new report by the Electronic Privacy Information Center, a research group in Washington, D.C.
The report studied retailers' compliance with fair information practices, a set of principles that provide basic privacy protections. It also looked at whether shopping sites use profile-based advertising and "cookies" to track browsing and shopping patterns. Both of these controversial techniques have been the subject of recent investigations.
"We think that consumers are more at risk today than they were in 1997, when we first examined privacy practices on the Web," says Marc Rotenberg, the center's executive director. "The profiling is more extensive and the marketing techniques are more intrusive. Anonymity, which remains crucial to privacy on the Internet, is being squeezed out by the rise of electronic commerce."