The Meaning of Color(s) in Logos

Today in class we talked about logos and colors. Colors mean something when it comes to logos. Psychologist have actually done research  to see how colors affect people and marketing. I knew some colors meant things, but I learned more today on what the colors mean in logo. I found this informative chart that explains what we learned it class. I wonder what the multi-colored logos mean... like google.

You can see the chart better on here: http://www.doodledogadvertising.com/doodledogblog/?p=722