SAGE was a great pioneering thing, but here's a take that's likely not
to be popular here. Les Earnest is a genuine greybeard, and
appropriately crusty.
http://www.stanford.edu/~learnest/e2a.html
I know SAGE is a sacred cow, but they often make the best burgers.
Also check out some of his other pleasant rantings at
http://www.stanford.edu/~learnest