Just a minor nit with the opening paragraph - citizens united did not give corporations any rights. It merely reaffirmed the free speech rights of their owners. I.e., you have the right to free speech, and you can use your computer, your telephone or your corporation to further that speech.

Among other things, Citizens United protects the free speech rights of the owners of computers, a topic we discussed here: http://news.ycombinator.com/item?id=4139590

Another good article is "Five myths about super PACs": http://www.washingtonpost.com/opinions/five-myths-about-supe....

This is a really good report by the NYT about Citizens United actual impact on politics. It really cuts through the talking points that have been parroted by the left for a while now.

Ira Glasser, the former executive director of the ACLU (1978-2001) wrote a good piece about Citizens United here: http://www.huffingtonpost.com/ira-glasser/understanding-the-...