Well, technically,
according to their website which says that they are the "Audio-Digest Foundation" with a number of "brand" lines under their aegis, they're a publisher who has neglected to fill in the publisher portion of their listing (much like the Charles River Editors half the time, which is why the links in that thread run on a keyword search), thus making it somewhat more inconvenient to copy/paste & tweak the usual link for publisher-offered stuff because I have to remember to swap the fields every time.
Thanks for the correction.