This was presented as a part of TypeCon2012: MKE SHIFT. I might try to write up a narrative to go with the slides, but for now, enjoy links to some resources referenced in the talk:
• Bibliography and the Sociology of Texts: http://j.mp/df-mckenzie
• The Web Fountes: http://the.webfount.es/
• Web Font Specimen: http://webfontspecimen.com/
• Typecast: http://beta.typecastapp.com/
• Gridset: http://gridsetapp.com/
• Ffffallback: http://ffffallback.com/
• Color Oracle: http://colororacle.org/
• xScope: http://xscopeapp.com/
• WebFont Loader: https://github.com/typekit/webfontloader
• TypeCon: http://www.typecon.com/
Update: I’ve heard that there is audio of the talk. I’ll include it here once it’s available.