Here on Twitter – Global pulse.
“Whether across the world or across the street, Twitter — and more broadly, technology — allows people to view the world through each other’s eyes. As a result, we are able to share information and communicate more easily than any time in our past, bringing the world closer.”
Here Twitter was used in the research on Happiness.
Here is another amazing video on Visualization
It seems that visualization could help in understanding the connections between concepts and is fundamental in pattern recognition.