Temporary e-mail address

You can create a temporary e-mail address that will forward all incoming mail to your usual e-mail address.
Many websites ask for your e-mail address to download software or to register. But you don't know what they'll be doing with your e-mail.. Your e-mail will probably be stored in a database which will then be resold to spammers and you will be receiving unsolicited bulk e-mail.
http://spambox.us/