All weblog software supports authoring, editing, and publishing of entries in the following format.

* Title, the main title, or headline, of the post.
* Body, main content of the post.
* Permalink, the URL of the full, individual article.
* Post Date, date and time the post was published.

Blog entries can optionally include the following:

* Comments – Comments allow readers to discuss blog entries, correcting errors or otherwise expressing their opinions on the post or the post’s subject.
Services like coComment aim to facilitate discussions through comment tracking.
* Categories (or tags) – indexes to subjects discussed by the entry
* Trackback and or pingback – links to other sites that refer to the entry