This document discusses various technologies used for business communication, including email, voicemail, groupware, CD-ROM databases, teleconferences, and faxes. It provides details on how email works, how to obtain an email account, email privacy and terms of use, the different email folders, email address formats, and additional email capabilities like address books and distribution lists. It also gives brief descriptions of voicemail, groupware, CD-ROM databases, teleconferences, and faxes.