Elfriede Jelinek, Nobel Prize laureate in Literature in 2004, is writing an
on-line novel (in German).
The novel is titled 'Neid' ('Envy') and can be found on her home page
http://elfriedejelinek.com/, under 'Aktuelles' in the left column.
Five chapters seem to be expected, but the experiment might also
be terminated early: two chapters are available so far.
I believe the novel will not be published by ordinary channels, and
there is a mention in a second-hand source that it may be free to be
copied for private use (which would exclude reformatting it for, say,
Sony Reader and making it available for others).