University of Oregon
University of Oregon: Mapping History: Slave Crops in the American South: 1860
This very interesting map shows the crops grown by slaves on plantations in pre-Civil War South.
Digital History
Digital History: The Slave Trade's Significance
An explanation of the significance of the slave trade in the colonial economy as well as in Europe. See why the slave trade stimulated manufacturing and resulted in the transatlantic triangular trade.
The History Cat
The History Cat: Age of Exploration: The Columbian Exchange
A fascinating look at the exchanges that took place around the world after the Americas were discovered. This covered the gamut from diseases which wiped out 90% of the native peoples in North and South America, to farm animals, tools,...