I need help adding bulk email to my Yahoo or G mail contact list

[pinonhillsbilly]

If I receive an email from a group member and it lists the other 100 recipients he sent it to and I need those contacts email addresses only. Is there a way I can put them as group in my contacts and add to them I will end up with 3 or 4 hundred

[soybean]

For gmail, see http://mail.google.com/support/bin/answer.py?answer=30970 

For Yahoo, see http://email.about.com/od/yahoomailtip1/qt/How_to_Create_a_Mailing_List_in_Yahoo_Mail.htm