Working from this generally outline, you can then break down the overall content into smaller articles that are easily digestible by readers. These can then fit into the various boxes and subheadings of the newsletter templates, for an attractive visual layout. It's recommended to break this information down into even smaller bits and pieces, including the use of bullet points and smaller boxes of facts and figures. Graphical information is helpful for business newsletters or the illustration of sales figures. These are just a few of the ways to show your message in an appealing way, which is helped along with the use of the templates.
Another way you can go is to create your own templates. You can base these around the types of articles you enjoy or you can visit other directories to see if you can find a general idea that gives you the ability to come up with your own template. Using your own articles may help you come up with your own templates as well. If your articles are along the same lines, you should be able to come up with a number of templates. Those will give you ideas for new articles and that for sure will help you get through your writer's block.