Internet History Sourcebooks Project
Fordham University: Modern History Sourcebook: Coffee Fazenda of Brazil 1911
The Modern History Sourcebook provides this great look at what life would be like on a coffee plantation during the early 20th century. It describes the houses, life on the plantation, colonists, and harvests.
Other
El Salvador's Coffee
Here you'll find a history of coffee exportation and plantation life in El Salvador. You can also find a general overview of El Salvador including government, geography, religion, labor, and culture.