http://www.iisg.nl/~landsberger/

Site still exists but is no longer updated. There is a new (and improved) site though:

https://chineseposters.net

东方红，太阳升，
中国出了个毛泽东。
他为人民谋幸福，
呼尔海约，他是人民大救星！

The East is red, the sun has risen,
China has made Mao Zedong.
He creates fortune for the people,
Hu er hai yue, he’s the savior of them all!