While reading through the Oracle Blogs, I came across this link to statistics on happiness on Facebook. My takeaway is that your attitude shows everywhere. I think your Christian testimony can shine or fade on Facebook. This ability to measure happiness from your comments is just one proof.
Another thing I notice is the strong tie between happiness and events. You can chart the holidays by the happiness levels. When we have true Joy that exists regardless of the events around us, we truly standout and our light shines.
I had seen the Google Flu Trends before, which charts the Flu outbreaks from Google Searches. The information age is just starting. The amazing part is not necessarily the new information that we will see but the availability of the information and the way in which it can be analyzed and brought together.