Disposable email address

I recommend you get a "disposable email address" through one of the many free email providers out there (hotmail, gmail, etc.). Use it when you sign up for programs and services that you don't fully trust (forexample the ones mentioned in "under testing" and "not recommended").

If you start getting a lot of spam or other unwanted messages in your disposable account, simply close it. Make sure you make a new disposable account first, and update your contact information for any services and programs you'd like to keep.

If you want better control over which services the unwanted mails originated from you can make a unique email address for each service you sign up to. You can do this by using the service name and a random number as the username part of the email address (for example servicename131@hotmail.com).

Also, be selective when it comes to what other personal information you decide to share. Try to foresee how the information can be used, or abused.