what do you mean? links seem to work fine to me..
.djvu is a little bit exotic format but it really is well suited for scanned text. Its next best thing after OCR (very similar to it, it stores for eg. letter "o" as bitmap once and uses it again and again for every occurrence). I'm not sure if there is Amiga viewer for it, though.
.jpg is bad for text, I know, but there are some photos in there, and .png would be too big
