Here are many FreeWare and ShareWare for Macintosh and Newton with explanatory notes and/or review, sorted out by name, by author and by category. And here is a full-text type search engine that will help your downloads.

JPEGView is a fast, powerful, easy-to-use image viewer for both 680x0 and PowerPC Macintoshes. The current incarnation of JPEGView can read JPEG, PICT, GIF, TIFF, BMP, MacPaint, and Startup Screen files.