here's another...

http://www.colormatters.com/bubdarc12-educate.html

And here's a blurb from another site...

"So, what colors have proven particularly beneficial? The consensus from the above studies is that light yellow-orange, beige, pale or light green, or blue-green are good choices for three of the four wall surfaces. Pastel oranges promote cheerful, lively and sociable moods that are desirable in a college classroom. Pastel yellow has a similar cheerful effect. Greens and blue greens in pastels are calming and provide a good background color suited to relaxation into tasks that require concentration. Deep or loud tones are appropriate for trim and what Mahnke refers to as "incidental areas." If used over dominant room areas, deep tones and glaring colors promote irritability. Deep reds, browns (excluding natural wood finish, which is good) and dark blues are particularly detrimental.

The fourth wall, the front of the room that faces the students, should be a different complementary or at least a darker hue than the other walls. Institutions rarely depart from painting all four walls the same color."

Try google -- you'll find tons of stuff.

Thanks to all for the suggestions.

John Elmer