"Undisclosed recipients" and email lists?

Question

a- In Hotmail or MSN, how can I set up a group so that I only have to click once to send a message to all members of the group?

b-How do I suppress the list of people that I am emailing to so that it says "undisclosed recipients" ?

Answer 1

I could not find my Undisclosed Recipients instructions, but, I found this online:

http://email.about.com/cs/netiquettetips/qt/et100603.htm