Ping-O-Matic is a service to update different search engines that your blog has updated.

Allows readers of Web Logs managed by Blogger to post comments on a post. Reblogger features a post counter, which indicates how many comments have been made on a certain post.

Web based system for publishing news stories, and it will in later versions have options for letting users discuss these stories. It also has an integrated search/link indexing system.

Zempt is a desktop tool for the Movable Type content management system.