I was uploading a new PDF file up to my publications page and noticed that the paper also had a PostScript link but I didn't have an updated postscript file. So I asked myself (and my Twitter readers) if anyone still uses PostScript. Apparently not so I converted my old PS files (including my thesis) to PDF and removed all the PostScript links from my page. I left the old files in place in case others link to them but I won't maintain or update them. No more PostScript for me.
In college I was one of the early people to typeset a paper on a computer using a program called Script (no relation to PostScript). In grad school I shortly used troff before turning to LaTeX for my technical papers. LaTeX produced dvi (device independent) files which could then be converted to PostScript which was the language used by many printers. PostScript was also in ASCII meaning we could then (around 1989) easily email papers, marking a major change in research distribution. When I started a web page a few years later, I put up PostScript files of my papers (marking another major change in distribution).
In 1993, Adobe created the PDF format though for a while it was hard to convert LaTeX into good looking PDFs. But when I could I would put up both the PS and PDF files on my page. Now we have direct LaTeX to PDF compilers and PDF readers abound for all devices, so it's time to say goodbye to the PostScript era. Just not worth the effort to maintain two formats.
On a different note, as I was doing the conversion I tried to find the online version of my recent STACS paper on the Springer LNCS site. Couldn't find it because in 2008 STACS moved the proceedings to the Dagstuhl server. First time for me to have a conference proceedings paper on an open-access online-only archive site. Another era begins.