You can create Groups on the People app on your phone, or from your Google Contacts on a PC. You can email to that Group from a computer only (G Mail desktop version), not from a phone. The G Mail app on phones doesn't have the options to send to a Group. Kind of frustrating.
Thanks to another droid help, I loaded the GroupU app (which was advised) and have used it to set up group email from my contacts list. Also, can include an attachment with email. Hooray!