Everyone seems to want our email addresses. Department stores ask for them when you apply for a loyalty card, you have to give one when you access a new website, etc. How can you avoid giving out your email address?
Go to www.tenminutemail.com.
On this site, you can get an email address that will be good for ten or twenty minutes when you need it. Thus, you can log onto a website, giving the email address you get from this site, and it will disappear when the time is up. And, best of all, this site does not keep any personal information. (Source: Consumer Reports)