In ICE, you often work with vectors, so it’s helpful to understand things like the dot product of two vectors. This video uses ICE to visualize the geometric interpretation of the dot product.
eX-SI
ICE, scripting, and other tech stuff about Softimage aka XSI
eX-SI 
What would be nice to see is twice a week a description of each ICE node broken down. I know there have been some tutorials on this subject but when you are a beginner programmer as myself things are a little harder.