You can see Hoaxy here or direct at
http://hoaxy.iuni.iu.edu/

Try a search on “Obama” and pick recent to see some “fake news” listings.. my check just now showed no one was fact-checking a reported post on Obama increasing the national debt… just one example…

A free tool known as ‘Hoaxy,’ developed by Indiana University’s Center for Complex Networks and Systems Research, aims to provide a better understanding of how fake news makes its way across the internet.

Source: Indiana University tech tool ‘Hoaxy’ shows how fake news spreads – CSMonitor.com