The Internet Archive is a whole universe with its Petabytes of data. They not only archive „the internet“ (!!), but also have dedicated collections of digitized public domain1) books, audio, video, and imagery.
Because of the sheer size of its databases, simply navigating those treasure troves can become difficult at times. To remind myself of „gold pots“ for a later return (and as a soft recommendation), I archive some good search queries and entry points into this part of the „deep web“.2)
subject
and year
parameter to browse for genre and date. The collection exclusions remove cruft from busy archivists featuring mostly 30 second long samples.