Google trends has several fancy tabs which correlate news stories and topics which are trending right now based on publications and actual searches in real time. The Story Clash Insights tool is aimed at newsrooms for major publications so journalists can spot early trends on social platforms and be the first to break stories. If you’re still unsure we recommend David Meerman Scott’s book, Newsjacking: How to Inject your Ideas into a Breaking News Story and Generate Tons of Media Coverage or another good read is Newsjacking: The Urgent Genius of Real-Time Advertising co-authored by Grant Hunter and Jon Burkhart.