Stop Press is/was a desktop publishing package for the Commodore 64 that came with the AMX clone mouse.  It's quite an amazing little program that has a lot of power and capability.  This is one to check out if you're thinking of making an old school newsletter.  Here a link to the manual.

*This is a PAL only program.  Even though it will boot up on an NTSC system, you won't be able to control the mouse.  Hint - If using a 1351 or CMD mouse press CTRL-4 to get control of the pointer.

With "The Newsroom" you can design, write, and illustrate a wide range of publications, including newspapers, newsletters, brochures, flyers,
and forms. You can spread the news about business, school, club, team, family, or neighborhood.

This archive includes a patched version of The Newsroom by BYB (released 2011) to work with virtual drives.  Also included in the archive are Volumes 1 - 3 of Newsroom Clipart. 

Check out this excellent article on using the Newsroom Wire feature and importing custom clipart into Newsroom.

Here is an article with information on the Newsroom file format