How To Create Mailing Lists In Gmail
How to send an e-mail to people under one “label” with gmail?
Lets say in your gmail account, you have 900 e-mails from different people, under one label – say “high school reunion”. And you want to get in contact with all these people via one big mass e-mail. Is there a way to take people associated with a label and send them an address at once, or create a mailing list from it or extract the addresses somewhere? I couldn’t see anything. Thanks 
Hello,
Try using the the following information to create a mailing list using Gmail labels:
http://www.emailquestions.com/gmail/514-create-mailing-list-using-gmail-labels.html
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