FT Press: What They Want: Ten Myths About Your Customers > Retail Bank: Let's Ask the Customers
This is an excerpt from a book called "Who Stole My Customer". It is a long read but provides some great insight on the roadblocks you may be throwing up in your own way to increasing sales and creating a good relationship with your customers.

CatalystBlogger: Cold Emailing: Worth a Second Look?
A good article about how to approach businesses via email to pitch your services.