Version 5 of this site is currently in its planning stages, I hope to launch it by the end of this Summer. Apart from rewriting the back-end, I am also planning to redo the site interface. I will probably stick with the same navigation structure that is here presently, as I think it works quite well, but I will redo the style of the site significantly. All suggestions are welcome!
Updated 2020 : note that the above post is out-of-date, given this post was originally published in 2004, but is left here for archival purposes.