The Best Disposable Email Address Services

There are times you don't want to divulge your real email address, especially when you are trying an online service for the first time.  Maybe you want to take that "free" psychology test online, or test out a new download for your iPhone.  There are services that will let you create "disposable" email addresses, where you can disable the address as soon as you want to stop receiving spam messages. About.com introduces you to eight of the best choices here...