The following is a link to an online textbook published by the Worldbank organization about Development Economics.
The book can be accessed via the following link Beyond Economic Growth

The following link is to an article in The Economist from 2002 entitled The Road to Hell is Unpaved. It is about infrastructure in Cameroon and Guiness' attempt to distribute its beer there.

The following video is Hans Rosling (Swedish professor) using data from 1960 to present to show changes in the economic indicators of countries over that time period.