2 Prong
Disposable email.

30gigs.com
Email with 30GB of storage.

Big String email

Dropload

Gish Puppy
Disposable email address. "GishPuppy is a free service that helps you manage all your online
registrations while still keeping your identity safe on the web".

Guerrilla Mail
"Guerrilla Mail provides you with disposable e-mail addresses which expire after 15 minutes. You can read and reply to e-mails that are sent to the temporary e-mail address within the given time frame".

Jubii
"Email, chat, Voice over IP, uploading and sharing files". With 10GB storage.

My memorizer
Calendar and email reminder service.

Spam Motel
Download. "Now you can stop junk e-mail, a.k.a. spam, from cluttering up your inbox. SpamMotel's unique patent-pending technology lets you know exactly where the sender got your e-mail address, and lets you block all e-mail from that sender with just a click of your mouse. It also blocks e-mail from anyone the sender gave, or more likely sold, your e-mail address to".


YouSendIt