Here are some of the non-textual arguments studets have created to explore mulitmedia literacies:

Spring 2002 -- A look at video engagement for teaching (Quicktime File 1.7 mb)	Spring 2002 -- A look at the importance of non-textual communication skills (QuickTime File 12 mb)
Spring 2002 -- A look at the meaning of non-textual symbols (QuickTime File 6.4 mb)	Spring 2002 -- A look at non-textual modes of communication (QuickTime File 4 mb; also available in larger format QuickTime File 11.3 mb)