The Pew Internet and American Life Project found that "Americans are not as isolated as has been previously reported. People's use of the mobile phone and the Internet is associated with larger and more diverse discussion networks."

That seems so obvious, was there ever really a question? Yes, and it was widely reported just three years ago. If you think back, you may remember it.

Here's the backstory: A 2006 study argued that over the previous two decades Americans had become more socially isolated. The study found that the size of our discussion networks had declined, as well as the diversity of people with whom we discussed important topics. It also found a decrease in neighborhood ties.

The 2006 study went on to discuss the negative impact of various technologies that Internet junkies hold dear, including--scandal!--our mobile phones.

Maybe the 2006 study was true at the time, but for many Internet users--myself included--its does not feel true today. Rather, the Internet, and social networks in particular, have broadened our networks considerably.

Here is what the Pew study has to say:

"When we examine people's full personal network--their strong and weak ties--Internet use in general and use of social networking services such as Facebook in particular are associated with more diverse social networks."

There you have it: The Facebook effect. It was not until Sept. 2006 that Facebook was open to everyone without requiring an invitation, so the 2006 study covered the last 20 years of the B.F. (before Facebook) era.

The new Pew study, conducted merely three years A.F. (after Facebook) finds Internet users interacting, increasing their social ties, and gives Facebook significant credit. (Facebook is the Google of social networks, according to recent stats).

Not all the credit goes the Facebook and not all the news is good. The Pew study finds that our social networks have indeed shrunk since the mid-1980's, but that the Internet improves the situation, not worsens it as previously thought.

"We confirm that Americans' discussion networks have shrunk by about a third since 1985 and have become less diverse because they contain fewer non-family members," the Pew study found.

"However, contrary to the considerable concern that people's use of the Internet and cell phones could be tied to the trend towards smaller networks, we find that ownership of a mobile phone and participation in a variety of Internet activities are associated with larger and more diverse core discussion networks."