Many other newsletter-style mailing lists are popular. The journal Scientist sends a newsletter message announcing the latest edition's table of contents and also includes graphics that can be viewed if you have an email reader with graphics capabilities. The Nursing, Information Technology and Library professions have embraced mailing lists and utilize them to keep a finger on the pulse of topical discussions as well as obtain answers to specific questions. Information about upcoming conferences, job postings, and current hot topics within a discipline are discussed. Often, links to journal articles and helpful Web sites are posted.
Some mailing lists are open to anyone with an interest to join.
Some lists have an individual who must manually add subscribers, after providing proof of membership in an organization. Limiting access allows members the privacy to discuss issues that may not be appropriate for all audiences. Moderated lists have a list owner or moderator who personally reviews every message submitted to the list and posts only those messages that are on the topic. Many lists have a list owner or administrator but remain un-moderated. Largely populated lists can produce dozens of messages per day and require many hours of manual posting for the list owner.