Other than technology and media, what might I suggest for things that represent the modern age?Hi, I am writing an essay on what represents the...

In addition to the two things you mention, I would mention
one of the following two things:

• General
  tolerance.  To me, a hallmark of the modern age is the idea that it is no longer
  acceptable to be intolerant of minority groups or bigoted towards women.  This is
  something that has changed in my lifetime and which seems very modern to
  me.


• Globalization.  One of the major attributes of our
  society today is the extent to which it is globalized.  We live in an era where there is
  so much trade and where more and more countries are becoming part of the global economy.
  

These are more social aspects of the modern
age in contrast to what you already have, which is more
technological.