A simple but effective drupal newsletter module

Simplenews scheduler sends a newsletter as a re-occurring item based on a schedule.

Simplenews scheduler does so by creating a new "edition" (rendered copy) of a node at the time that it required to be sent again, the original newsletter is never sent but all editions are according to a pre-defined schedule, this is triggered via hook_cron

Nodes created by Simplenews schedule have an extra tab (for those with permissions) for viewing all editions as well as the original newsletter they are generated from.

The schedule is defined when you create or edit a `simplenews` node.

Current options for sending are by day, week, and month.

I'm currently using this on the heavy metal collectors gallery site to send a weekly newsletter with embedded photos from a view, using htmlmail, mimemail and insert_views