Evidence that the Election in Iran was Rigged

Here's a simple to understand article with some basic points that make it obvious that the recent election in Iran was stolen: http://www.juancole.com/2009/06/stealing-iranian-election.html

Here's a slightly more technical argument:

http://www.fivethirtyeight.com/2009/06/iran-does-have-some-fishy-numbers.html

And here is a very compelling read:

http://www.pollster.com/blogs/mebane_moderately_strong_suppo.php