This week the Email Vendor Features and Functions Guide is released. The second part of the two part guide that offers side-by-side comparison of in total 53 ESPs (email service providers) worldwide and the differences between email vendors is larger than expected. http://www.emailvendorselection.com/email-vendor-functions-and-features-guide/ Starting Price 400 Euros
Don't they always leave out the best ones. I'm not crazy about these guides but still a good resource if you're new to the industry.