Stem Cells: I meant to link to this sooner, but for those who are interested in learning the basics of stem cell research, from the science to the politics to the ethics, the much-maligned President's Council on Bioethics has the most extensive and comprehensive collection of information. The main site includes links to their full report as well as transcripts of their discussions and debates and testimony.

The report is especially good, as are most of their reports. They present both sides of the debate and are quite solid in their summaries of the science. And they're written in readable language. The Council deserves far more credit than they generally receive for examining the issues in an even-handed manner. Not to mention making their process so transparent.