Because newsletter templates are available in all variety of lengths and sizes, there is really no limit to the content that you could potentially write. Keep in mind, however, that you should probably keep down your word count to a level that people are comfortable reading. While you may think everything that you are spouting off is fascinating, it's helpful to first sit down and make an outline of what you want your main message to be, or what the major news is that you are trying to share.
Having an Internet connection is always an advantage, all you need to do is to look into those sites that offer scrapbook features for download and you will be able to find templates of your choice from there. These templates can help you if you are having problems on how you will be able to layout your scrapbook accordingly. Isn't it wonderful that you can look into ready made options like this?