couple of videos about the Electoral College that Keith Hughes produced. Keith has many other excellent videos for U.S. Government and U.S. History students. One set of those videos is Presidential Elections Explained. In that set of videos Keith explains the outcomes and significance of every U.S. Presidential Election through 2012. I've embedded a few of those videos below.
The First Presidential Election
The Election of 1860
The Election of 1904
The Election of 2008