I'm creating a new marketing resource site and want to include a large blog-roll as well as a combined rss feed. I'm interested to know which marketing blogs you find useful. I have my own list that I read, but I know there are tons more I've never even heard of. Feel free to list your own, but if they're yours and you're ok with me using your RSS feed, please state that so I don't have to email you. Thanks for the suggestions.