Since March, Forbes readers have been switching on their webcams, watching Super Bowl ads, and seeing their smiles instantly plotted on line graphs.

FORBES: MIT Group Studies Emotional Response via Webcam; Compiles Largest-Ever Archive of Facial Expression Videos

Plotted as a graph, the line representing the price of a barrel of oil price in gold has crossed the horizontal line representing the average price (0.0735 ounces of gold) 27 times.

FORBES: Our Strategic Petroleum Opportunity

And while Levi plotted to compete against the stores by going on-line, it continues to forbid them from doing the same.

FORBES: Digital denim