If you are getting a vast number of email notifications sent by your Twitter account and they started to annoy you, this is how you disable and manage them.
How many times did you hear a great song on a radio or in a YouTube video and really wanted to know the title and who's performing it? Let me show you the app that can find it out for you.
When you send an email to multiple people, those people can see who else got that email. But if you don't want certain email addresses to be visible to others, this is how you do it in Outlook 2010 in secrecy.