Chicago Style Guide, for 17th Edition

Introduction

Citations of blog entries and comments are structured similarly to articles in periodicals. If you’re using a blog comment as a reference, the citation should begin with the screen identify of the commenter, date/time of the comment, followed by the words “comment on”. Blogs which are part of a larger publication (ex. New York Times) should also include the name of the publication in their citation. Make sure to remember to add the word ‘blog’ (in parentheses) after the title of the blog (unless the word ‘blog’ is part of the title). Citation of blogs is usually limited to footnotes/endnotes and is not included in your Bibliography unless used as a large or frequently reoccurring source.

Footnote/endnote citation of blogs should include some or all of the following elements:

1. Commenter screen name: (when citing blog comment).
2. Commenter date: Month day, year
3. Commenter time: (time) of comment (when citing blog comment).
4. "comment on”: (when citing blog comment).
5. Author: (firstname middlename lastname).
6. Blog post title: (in quotation marks).
7. Blog name: (in italicized characters).
8. Publishing company: if part of larger publication (in italicized characters).
9. “(blog)” (if ‘blog’ isn’t used in the blog name).
10. Date: Month day, year
11. URL.

 Basic Layout

[indented tab]1. Commenter screen name, comment date (time), comment on Author Firstname Lastname, “blog article name,” name of blog (blog), Parent Publishing Entity, publication month day, year, URL.

Examples