At the top-left of your Gmail window, click the Mail logo and choose Contacts from the drop-menu.
Yes, you can open the Gmail contacts picker, which lists email addresses of all your personal contacts, as well as global contacts in your organization. When composing an email message, click the To: link.
Only if Google Groups for Business is enabled for your domain. Otherwise, you can't view the members of organization mailing lists created by your administrator.
Yes. Whenever you send an email message to someone, your Contact Manager adds that person's email address to your Other Contacts list. To move the contact to your My Contacts list, open the Contact Manager, click Other Contacts (at the left), select the addresses you want to add, and clickMove to My Contacts.
Yes. Just open your Contact Manager's Directory list and search for the contact. When you find the contact, select it and click Move to My Contacts. After that, you can add additional information to the contact's details. Note, however, that this information appears only in your personal contacts, not the corporate contacts.
If you haven't yet sent email to a corporate list, you might need to add the group manually.
Not directly, but you can quickly recreate the mailing list in Google Apps as follows:
Yes. Just open your contacts picker and create a new contact group. the group then appears in your personal Contact Manager. To open the contacts picker:
Sure, you can add or remove members of your own groups at any time.