Turn off your "do other people like this?" filter. Also turn off your "is this like other stuff I've used before in the past?" filter. Go try out the technologies yourself. The stuff you like now is the stuff other people will like in a couple years.
Probably scraping websites like Hacker News or Github on a daily basis and see what new things are surfacing. For example, what are the projects on Github that are getting new followers faster, or what words appear often on the front page of Hacker News now, but not six months ago?
Have you tried Google Trends? > <a href="http://smallbusinessbc.ca/article/how-use-google-trends-perform-market-research/" rel="nofollow">http://smallbusinessbc.ca/article/how-use-google-trends-perf...</a>