Two things you should read; this [coilhouse post][ch] introducing [“The Decline of Fashion Photography”][art].
The main article traces one art form from the fifties to the present-day in twenty-eight photos and comments. Her argument is that the form has descended from a heyday to a low point nowadays, with either too little art, or too little fashion.
In a wider sense, it’s interesting to consider whether art forms generally go through such rises and falls. This has to be quite focussed; I think arguing for a golden age of cinema, or of music, would be ridiculous; but arguing for the heydey of zombie explotation movies, or mod, or house music, that’s possible.
For me, the interesting question is around sci-fi short fiction. Recently, it’s been [argued][we] and [riffed on][al] that science fiction short story mags like [Analog][an] have been declining in circulation; does this mean that form of written, printed short fiction drawing to a close? Is it being transformed by the internet? free electronic distribution of magazines like [hub], reworking the form into [flash fiction][ff], and changing the medium by podcasting (eg [pseudopod][pp]) suggest the forms mutating rapidly and that the classic sub-10,000 word, printed paper story might well atrophy away. After all, while people might not be comfortable reading a whole book on a screen, they’ll read an awful lot of short pieces.
PS: I’d recommend [coilhouse][chm]; it’s a interesting art blog focussing on alt culture.