Ian, your link doesn't appear to work, try Janis Ian Website.
Janis Ian has long been a favorite of mine, ever since I saw her perform at Newport Folk Festival. She is gracious, funny, supremely talented musically, plays kick-ass guitar, and unlike some singer-songwriters of similar persuasion, endears herself unfailingly to both gay and straight members of the audience.
The article you mention will touch a chord in the heart of anybody who has ever loved a guitar. I also recommend her piece on "Doing Howard Stern". Required reading for all PC gurus.