Email Marketing Resources
Email Marketing Reports: Email Basics
Email Marketing Reports: Why Email?
ClickZ Guide to Getting Started
Email vs E-Mail: Hyphen Equals Disrespect
MailChimp: Ask Before You "Blast"
CAN-SPAM
Wikipedia on CAN-SPAM
FTC's Requirements for Commercial Emailers
CAN-SPAM was also updated last year
Industry Blogs + Reading
Many of these sites have newsletters and other emails available for subscription. Many ESPs also maintain blogs.
Resource & Whitepaper Centers
Many Email Services Providers compile resource & whitepaper centers for clients and prospects. Here is a sampling.
ExactTarget Whitepapers
Silverpop Whitepapers
Bronto Whitepapers
Email Labs Best Practices
Email Design & Coding
MailChimp's Design Resource Center
Smith Harmon's Email Creative Review
CampaignMonitor Gallery & Tips
Email Experience Council: Make it Pop
Email Marketing Resports: Format and Design
Marketing Sherpa: Email Design & Delivery
TESTING
Some ESPs have proprietary built-in testing (MailChimp, CampaignMonitor)
Search
Email Service Providers
Email Service Providers are the companies that give you the ability to create, send and track your marketing messages. There are dozens of ESPs out there to serve every possible need, but here's a short list to get you started:
Lyris (EmailLabs)