..or you could save much breath by just showing your Grandparent / Significant Other / Boss / Friendly Neighbourhood Luddite the final version of Michael Wesch's The Machine is Us/ing Us
P.S. Higher quality versions available for download:
Windows Media File (55 MB)
Quicktime File (96 MB)
Mojiti Version (for comments, translations, etc.)
Tried to post this ages ago, but was stymied by my Old Blogger / New Blogger woes. Pre-dating it to the time I tried to post, originally.