The membernotification module allows CMS Administrators to add short messages(notifications) for content authors. It has group level permissions as well.
Tag: silverstripe
Advanced faq module for SilverStripe CMS
An advanced FAQ module for SilverStripe CMS with tags, sections and versioning.
Testing protected methods in SilverStripe
How to test private and protected functions in SilverStripe
How to Import External Data into SilverStripe models
Importing external data into SilverStripe models