Try the PDF version if you have a PDF viewer. TeX became in the last two decades of the 20th century the primary document language for mathematical research. What we see now, in 2001, is a relatively stable nexus of software and practice that puts far more writing power into authors' hands than they had a generation ago. Nevertheless, Software evolves rapidly. There remains plenty of room for natural and significant improvements in the software that mathematical authors use.
Authors are naturally interested in learning how to make better use of existing software.
For an author who does any substantial amount of writing, such questions are natural and important. We would like to solicit the following kinds of contributions from the user community. We are developing a collection of sample documents with the idea of posting versions of each document in different formats so that people can see how they compare. Readers are invited to suggest items to be added to this collection.