CSRwire is a site that covers pretty much everything to do with corporate social responsibility. It tends to take a pro-business slant on the issue, but also contains a lot of useful information. Interested in the CSR profile of Coke vs. Pepsi, CSRwire is a good place to start.
They’ve just added a multimedia section that they call Video, Commentary, and Research (VCR). So far it has a few videos and audio files, as well as a lot of information about VCR itself, but should be collecting more. They also put out a press release on VCR.