The Advanced Very High Resolution Radiometer (AVHRR) sensor collects cloud and other data from several satellites orbiting the Earth. The University of Wisconsin has created an archive of AVHRR false color imagery dating back to 2007. In addition, they have created a network link that updates automatically every day with the most recent satellite imagery. I believe these are false-color images, but they look spectacular nonetheless.
You can access the individual files from the University of Wisconsin website. Or you can just open the file beneath the screenshot and have access to all of them in Google Earth via an index that I have created. The index contains the current image and archives from December 2007 to December 2009. You will need to go to their website if you want to access archives after December 15, 2009.