With the pace of change, constant learning will be the norm. Imagine the quantum leap the global mind could take if education were free and available to all! There are lots of materials available online, but not everyone has the computer access to take advantage of these free resources (see a sampling below).
https://www.coursera.org/
https://www.edx.org/course
http://www.ocwconsortium.org/
http://ocw.mit.edu/index.htm
//openlearn.open.ac.uk/
http://oli.web.cmu.edu/openlearning/
http://www.extension.harvard.edu/open-learning-initiative
http://oyc.yale.edu/
http://itunes.stanford.edu/
http://itunes.berkeley.edu/
http://ocw.mit.edu/index.htm
http://www.khanacademy.org/
And then there's YouTube where people love to share what they know!