(Laura, Teresa, RosieCat23, BR and 3 others @ WikiHow) To create a 'Mailing List' in GMail saves a lot of time and efforts for mailing a mass e-mail. Mailing List in Gmail is called Group. This is how we do it...
Steps
Open GMail, and click a "GMail" button on the left,
Click Contacts option,
Click 'New Group' option to open it, give a name to a new group, for example 'Work', then click OK to create it,
Click on 'Work' group to open it,
Click on the icon (see image) ... it will open a window to start adding contacts to this group
Next, for example, you have Ella in your contacts to add to the group ...
Continue the same procedure until you enter all your work contacts, their e-mails also will be shown,
A new group 'Work' will be shown on your Contacts with a number of contacts in parenthesis,
At this time click 'Contacts' button, then 'GMail' option to return to the original page,
Click 'Compose' button to start composing an e-mail for the new 'Work' group