Hi all, things are coming along slowly but surely for an 0.7 release
sometime soon.  I've put up a current working version of the updated
website here:
  
http://www.cis.upenn.edu/~byorgey/diagrams/
Any feedback is welcome.
I thought I'd also take the opportunity to put out a general call for
two things:
  1. It would be lovely to add more examples to the gallery [1].  Have
     any nice examples lying around?  You can either just send me the
     code, or even better submit a pull request---all you have to do
     is add your .lhs file to the web/gallery directory in the
     diagrams-doc repository, following a simple format (which you can
     easily pick up using the other gallery entries as examples).
  2. In an effort to take some of the pressure off the (rather
     monolithic) user manual, and invite more contributions, I've
     streamlined the organization and build system to make it easy to
     add new tutorials to the website, which have syntax highlighting,
     inline diagrams, and so on.  To see how to write one, take a look
     at the tutorial meta-tutorial [2].  Tutorials don't have to be
     long---in fact, shorter is probably better!  For example, if you
     have some diagram that you've constructed using some interesting
     techniques, simply walking through the code to explain it might
     make for a nice tutorial.  A collection of "exercises" or
     "challenges"---diagrams without the source code displayed, which
     the user has to try to duplicate---could also make a nice
     tutorial.  Really, *anything* which might teach something to
     users of diagrams is fair game!
-Brent
[1] 
http://www.cis.upenn.edu/~byorgey/diagrams/gallery.html
[2] 
http://www.cis.upenn.edu/~byorgey/diagrams/doc/tutorials.html