Find People And Contacts. For example create a contact list named My book club and add all the members of your book club to it. Choose a contact to add their email address to the To line of your email.

Contact lists are sometimes referred to as distribution lists. Search for a contact in the People pane Choose People module at the bottom left of Outlook. If it doesnt select Show People on the taskbar.
Search for a contact in the People pane Choose People at the bottom of the screen.
Send an email to a contact from the People app. Above your contacts list place your cursor in the Search Contacts box. Change whos saved suggested as contacts. Since people sign up for Twitter using an email or phone number when you sync the contacts in your phone Twitter can more easily find your friends accounts so that you can follow them.