John Walter pointed to an art show running this summer in New Paltz, NY.
Chris Lingren is thinking about McLuhan, too, always. Great example from his daughter.
The blogosphere was buzzing a while back about "Is Google Making Us Stupid?" but of course Google used metonymically for "the web" and, perhaps not surprisingly, the article argues that the medium (the web) is changing our thinking, reading, etc.
This speculative instrument never gets old!