I've started an article summarizing the state of WSGI software as it
relates to Quixote.
http://sluggo.kicks-ass.org/python/quixote/wsgi-scgi-frameworks.html

That's on my computer so it's not always running.  The ReST source is at
http://www.cafepy.com/quixote_extras/sluggo/Jack/notes/wsgi-scgi-frameworks.txt
which is always up.