Pros/Cons of the Interweb

I just read the most interesting textbook chapter of perhaps my entire academic career. My brain is now full of knowledge about how this magical thing called the 'internet' works. Amazing! Mind blowing yes, but amazing!
Anyways, today's concept is:
displacement effect: if people spend time surfing the Web, playing games, or engaging in other activities that displace in-person social interaction, the outcome may be less than desirable.