I would refer you to the "MLA Handbook for Writers of Research Papers, 5th Edition" by Joseph Gibaldi. It specifically refers to "online posting" on page 200. You should include the author's name and the title of the document, in quotes, as given in the subject line, followed by the description "Online posting", the date when posted, the name of the forum, date of access and in angle brackets, the online address of the list's Internet site. Hope this helps.
I would refer you to the "MLA Handbook for Writers of Research Papers, 5th Edition" by Joseph Gibaldi. It specifically refers to "online posting" on page 200. You should include the author's name and the title of the document, in quotes, as given in the subject line, followed by the description "Online posting", the date when posted, the name of the forum, date of access and in angle brackets, the online address of the list's Internet site. Hope this helps.