Humans have not changed physically in millions of years, but our behavioral patterns as a whole have done so in recent years. There was quite a bit of media hype leading up to Year 2000, and as a result millions of people became much more cognizant about the workings and advantages of the internet. Hence, the creation of a fertile environment to propel forward thinking efforts such as Facebook and LinkedIn. Technology has changed the way we communicate, and while it may not be cause for alarm, it is surely cause for concern.

http://thepolicytree.com/Research_Report_HB_1.01_Human_Behavior.pdf