"Science Nation" is a free, weekly online magazine from the National Science Foundation that looks at discoveries with the potential to transform our world — such as an artificial retina that can help the blind to see, new materials for building things stronger and lighter, what we’re learning from organisms in hot volcanic vents, and ice core secrets that could reveal the answers to global warming. "Each week, ‘Science Nation’ takes a dynamic, entertaining look at the research — and the researchers — that will change our lives," the site proclaims. http://www.nsf.gov/news/special_reports/science_nation/index.jsp