Here are some recent issues of the Sydney PC User Group's Newsletters. They were originally emails saved from Thunderbird as .eml files and then renamed to .mht files (MIME Html - See the Wikipedia entry).

This format combines both text and images into a single file which some browsers can display.

However, a program to decode these .mht files was found which produces html files along with subdirectories of image files. This means that any browser can now display the newsletters.