Here’s a podcast with Charlene Li of Forrester Research on the impact of blogging and RSS as marketing tools.

[I'm hearing from marketers:] ‘I don’t want to give up my email newsletter in favor for RSS.’ But actually corporate marketers can now shift the heavy lifting forcing into email newsletter to RSS, and have email newsletters play a different role. For example: instead of holding a product launch for another 2-3 weeks waiting for the next email blast, now with RSS, marketers can put it up whenever they think is the right time. And get feedback and conversations back and forth very social and control goes back to marketing."