Flying Machines Press was bought (and saved) by Paladin Enterprises and still is in business. They recently published gorgeous books on Pfalz and Salmanson a/c of WW1 and soon will have 2 books on Airco DeHavilland a/c of WW1 (DH1 thru DH15). Their web site is at: www.flying-machines.com All my dealing with them at their new home has resulted in 1st class service. (I do not work for Paladin or FMP.)
I might be a little biased since I do contract work for Paladin, but they have been super to deal with all around. I have not seen the Pfalz or Salmson books yet, but would like to hear from anyone who has. I did the cover art on both. The DH books are in the works. I did the covers for these as well. You can get a preview of the cover of volume one at: http://www.eaa.org/education/art/artcompet...tml
Page down one page to the DH-2. Volume 2 will have a flight of IAF DH-9's under attack by Pfalz D.VIII's.
Paladin seems to have a strong commitment to continuing what Jack Herris began - that is quality WW I aviation books. Enthusiastic support (if the books are good !) will encourage them to continue this line.