Add a Comment: Commenting is also publishing. Comments are articles that have a comments on relationship to another article. Commenting was discussed in the Add a Comment to a Paragraph or Article section.
Email Reply from Traction: When you are reading an email that was sent to Traction and click Email Reply link, your response will be sent to the sender of the email, but will also be published into the project you select.
Email Articles from Traction: When you email articles from Traction, you have the option to publish the body of your email in a project.
RSS Feeds: If you have the Traction TeamPage Feed Reader, an administrator can subscribe to feeds which will be published directly to Traction.