Promotes communication in stem cell research by providing diverse content by and for scientists, policy makers, ethicists, clinicians, and patients. Includes the latest news about research, policy, ethics, business, and clinical trials; a forum where readers may comment on papers and vote on how well they like them; and detailed expert comment and author responses drawn from the peer review process of recent scientific papers. Access to the Web site is free, but users are asked to register to receive the monthly newsletter.