Social Networking and Productivity/Satisfaction

In a recent article from Workforce Performance Solutions, I agree with the author's assertion and title that Strong Social Relationships Increase Productivity, Job Satisfaction.

As we wrestle with this topic as it relates to technology, what is your reaction to the following quote:

...online social networking platforms go a long way toward introducing people and getting them to work together, but strategically planned events and meetings are the best way to encourage true cooperation.

It's the classic chicken/egg question:

Do we need to meet and interact face-to-face before technology can be leveraged? Or, can we leverage technology first?

How do we accommodate the growing number of telecommuting workers?