Yahoo groups are email announcement systems. Assuming they are configured with their settings set to "public" ("anyone can view/anyone can join"), they all have these 3 features
- Feature 1: You can BROWSE dance announcements on a web page in the automatically-created "message archives".
- Feature 2: You can also "SUBSCRIBE" or "unsubscribe" yourself, by sending a "blank" email message (no subject, no body necessary) to the appropriate address.
- Feature 3: Whenever an announcer sends a message, all "subscribers" will get a copy, and the Listserver (Yahoo group) will automatically create a new web page to display that message.
For more information: