How do I create a group email list from my address book?

Depends on your email program. Check under help. ~

Mine has a 'New List' icon.

You can set up a "Category"---that's what Yahoo calls a list. On your mail page, click on "contacts" and your address book opens. >>check each name you want in this category. >>then click the "add to category" link-(next to the "send to" tab). >>in the drop down list, click on "new category" and a name box opens. >>type in a name---no special characters, nor more than 12 letters. Just keep it simple--and then click "ok"----and it's done. The category name should appear in the side panel of your address book under "categories" (for editing purposes)>>>>AND>>>>in the drop down mailing list-(when you click on the word TO). Click on the "category" link next to "my contacts", and the different categories are listed. All you have to do now, is enter the "category name" in the address line you prefer, and everyone in that category automatically gets the mail. Yes---there is a limit to the number of people you can send to a one time. However----no one seems to know the exact number,--- cause a lot of it depends on the size of the message, AND, which address line you use. The BCC line (blind courtesy copy), allows the least number (about 30 or less)---but they may have changed that number. The TO line allows the most.