The Huffington Post put the map, seen at the right, on its Facebook page on March 29, 2013.
Each area of red on the map shows where someone changed their Facebook profile picture to the Human Rights Campaign’s red symbol for equality. More than 2.7 million Facebook users changed their profile picture on Tuesday, March 26, according to Facebook statistics.
What struck when I looked at this map was the correlation of where the sparseness of red is on the map of red equality signs and where the red is on the map of the slave states, shown on the far left.