http://diigo.com/0cxsb
Quotes:

The Alliance For Democracy - News, eNewsletters, Alerts and Chapter News: Citizens United After Eight Months

• And what about liberal groups? Even in the best of times they have a hard time competing with corporate PAC money, but this year is even tougher. At the same time that Citizens United has opened the spigot even wider for Republicans, it's run dry for Democrats.