This Nation
This nation.com: Electoral College
A textbook excerpt from ThisNation.com that includes a useful chart of electoral votes by state. Clickable links to pertinent articles and amendments of the Constitution are another plus.
The Dirksen Congressional Center
Congress for Kids: The Electoral College
Political parties want winner-take-all elections for electors. This means that the state that receives the most popular votes wins all the state's electoral votes. All the states except Maine use this winner-take-all system today.
New York Times
New York Times: Crossword Puzzle: The Electoral Process
Twice a month you can play a new crossword puzzle on The New York Times Learning Network. This one is called "The Electoral Process."