A periodical collection of messages which have been posted to
a newsgroup or mailing list. A digest is prepared by a
moderator who selects articles from the group or list,
formats them and adds a contents list. The digest is then
either mailed to an alternative mailing list or posted to an
alternative newsgroup.
Some news readers and electronic mail programs provide
commands to "undigestify" a digest, i.e. to split it up into
individual articles which may then be read and saved or
discarded separately.
