[racket] PLaneT category listing?

Is there currently any way to navigate PLaneT packages by category on
the website? Is something like that possible to add to the main page?

Examples of what I mean:
 http://hackage.haskell.org/packages/archive/pkg-list.html
 http://search.cpan.org/
 http://wiki.call-cc.org/chicken-projects/egg-index-4.html

All of these have some navigation by category. I searched through the
list archives and didn't see any mention of this for PLaneT.

I sometimes find myself--as I did today--wanting to just look at a
particular category of packages. Just a hyperlinked category list would
be great. I usually resort to just text searching through the page, but
this is hard if I want to find, say, utilities for "C".

Cheers,
Asumu