::*'''Nearly everyone uses e-mail''', but although very useful, it '''e-mail is not the best method for on-line collaboration'''.::*Certain '''Social Media software ''' (eg. facebook, twitter) are useful for posting messages and keeping in touch with friends and events, <br />but '''lacks the ability to create massive shared databases'''.::*'''Document generation and editing''' (eg. word-pressing, spreadsheets, slide-shows) are mainly edited "off-line", which '''requires more work downloading and uploading files'''. Although they may be posted to web-pages, those documents are not really considered "living documents"...