"future technologies" is pretty wide open.
aka could start a separate ycominator companion site
and still leave out a lot. ;)
One helpful approach I'd use would be to use a search engine(s) to help
narrow down the focus a bit. aka "omni alternative";"tech podcast"
Yeah, typcially way to much info indepenent of what term(s) one uses;
but great for getting a grasp on what's relate; prunning ideas dont
want to conside; and new takes/views on "old" stuff.
Obviously, have to concept prune by default & necessity.
Also bit more "customized overload", too
try search one day, wait for some time (day, week, month, year(s);
do same search terms -- get an idea of how quickly things are evolving.
note: for given term(s)/topics, might seem to disappear, but things changed
enough that the "search" is obsolete!
try same search on multiple search engines!
A few prune/starter search category ideas:
1) Lot of self project blogging aggrigate & individual/group sites
(vs. 80's & the dialup bbs). just try a term(s)/author and prune away!
general: www.indistructables.com / youtube / https://www.thingiverse.com/
directed: blinkenlights.net ; "tech magazine", grab a term/author/story & search
2) Searching foundational sites (gnu/mit/ieee/acm);
sites containing citation/papers (csail robotics spinoffs)
websites, aka cmu robotics, mit csail, georga tech, etc.) either for
whats being done or reviewing what's cited in paper(s). aka hardware
needs software & vise versa.
3) In the search vein, sometimes just doing search for things like the 1920's mechanical tv, ardrino punch card reader, and/or 3d printed project can turn
up some fasinating stuff/ideas.
general: hackaday / makezine
directed: check out a project's url / citations / inspiration / etc.
general "thing a group/individual has done" : www.creativeapplications.net has limited set of examples on home page with archives stuff available to subscribers.
http://technovelgy.com/ what was once 'future tech'.
aka what Asimov ideas are still yet to happen? / What sci-fi writer ideas is SpaceX going to run into?
4) search term "open source projects":
https://medium.com/@likid_geimfari/the-list-of-interesting-o...
https://www.oshwa.org/open-source-hardware-journals/
https://opensource.com/tags/hardware