Free Marketing Email Copy - Marketing email copy from 500+ popular brands.
Designjar - Designjar offers graphics for social media and online advertising.
VeryGoodCopy - 100s of proven copywriting principles & techniques, for free
Zurb - ZURB helps companies design better websites, services and products through services that include design strategy and interaction design.
Raven Creative - Raven Creative specializing in effective, strategy-driven solutions for website design, branding, advertising & beyond.
Great Email Copy - A dose of emails from around the web.