Mailing lists are one type of electronic bulletin boards for Internet. The technology works by first submitting your email address to a database program. This way people can share common problems, solutions, and interests via email. Some mailing list programs have the ability to archive the mail they receive. These archives are what may or may not be searchable through various Internet search engines.
News is more authoritative and contains less opinion than current events.
In this context, sounds are stimuli producing auditory sensation saved in a digital format. Because they are the posting of humans, they type of content they contain mirror human thought and interests. See the release notes .