A simple blogging module for ImpressCMS 1 & 2 that works in conjunction with the imTagging module for categorizing your posts. You can set a future date for publishing to schedule when a post will be visible. And, beginning with version 1.2.0, you can set permissions on who can view posts and customize content for different groups of members.
Copy the imblogging folder to the 'modules' folder. Then go to the 'Modules' tab in the administration panel and install the module.