Really Good Emails - A large collection of good product email design.

Cvent - Cvent's event management software provides event planners with a complete solution to increase event attendance and decrease event costs.

Good Sales Emails - Best sales emails from great companies

Eventzilla - Eventzilla lets you sell tickets online and manage attendees from one integrated application.

Great Email Copy - A dose of emails from around the web.

Attendify - Develop relationships at the events that you attend by creating smaller events with just a few people.