This blog covers old and obscure media. There is a lot about the technology of records and record players: laser turntables, multigrove vinyl, fun with liner notes, etc; but also lego mosaics, bottle cap art, and other oddness.
A group blog chaired by Mr X Radiographer which deals with obsolete, esoteric, and historical technology. [Disclaimer: I am an occaisional contributor.]
dead link: http://xradiograph.com/scp/
Insights and links from Xradiographer, aka "the other Michael", a boingboing regular.
More of an advocacy site for overpass free speech than a true blog, still a nice collection of encouragement and albums of photographed messages.
qz thoughts