Screeniac
Screenshots Suck! Screencasts Rulio!

Dongo Mail is a free mail service that provides you with 4GB of storage, fancy signatures, triple layer Spam/Virus protection, Ajax based interface, and more. They also provide you with full news articles updated every 15 minutes, a “Ginormous” web directory with over 5 million listings, local weather, etc.
Flash Demo

SocialMail is a free service that enhances your own email by allowing you to communicate and collaborate with groups all through one email.
Flash Version