I found this post by David Skok to be very helpful: he has a blog post and slide presentation webinar on "Building a Sales and Marketing Machine." Great tips, explained clearly, and from a very experienced entrepreneur/VC. http://www.forentrepreneurs.com/sales-marketing-machine-webinar/
Any other suggestions for good online resources? I've seen some good posts on BusinessInsider, BusinessExchange, and YounEntrepreneurs.com. Other recommendations?