http://www.la84foundation.org/5va/reports_frmst.htm
Here’s a great site that has links to the original IOC reports concerning each and every Olympic Game. These are the documents that every Wikipedia article sites. They are incredible as source documents. Especially interesting is to critically evaluate the way each nation characterizes (or tries to) their approach to planning and executing the games. A great example is Stockholm in 1912: organizers called for a scaled down Olympics which was less expensive and expansive than the 1908 London Games, but when the Swedes tried to pare down the number of events, countries who were particularly strong in those events lobbied for their inclusion. In the end, the games were larger and more expensive, but not necessarily because of the Swedes.