Yahoo has introduced a new feature to their paid email services: disposable email addresses. Using your primary Yahoo account, you can create up to 500 one-time-use email addresses that will work until you shut them down. In other words, if you don’t like giving your real Yahoo ID or email address out because you’re worried about spam, you can create a new one that will forward messages to your real acount until you decide to pull the plug.
I suppose it’s a handy tool, but since it’s only available with Yahoo’s paid service it has little impact on most users who, like me, don’t pay for Yahoo and instead suffer more than 100 spams a day.