The Coalition on the Public Understanding of Science has declared 2009 the Year of Science. As part of this initiative, they've launched an excellent new website: Understanding Science. Hearteningly, the website focuses not on the content of science but on the process of science. Especially check out Understanding Science 101 and this great visualization of how science works.
Science. How science works. Scientific explanation. Learn science. Become a scientist. Science 101. Science introduction. Science intro. What science is.