I use Bookmanager/Read* to conduct reviews of drafts.  My reviewers can review
the draft on a variety of platforms (os/2, dos, mvs, vm, aix) and send me their
comments via email.  I then use the MVS version to incorporate the comments
into a common online version so that all the reviewers can see the comments.
The biggest problem with this approach is that Bookmanager wasn't designed
as a reviewing tool, we're basically abusing it's note facility when we use
it to conduct reviews.  However, this approach lets customers review early
drafts without needing special access to an IBM system.

Before I came to IBM I worked with a team at CMU that was developing
an editor that allowed visual types of comments (draw circle around a word
or paragraph to indicate you want to move it) as well as notes (popup
"sticky" notes or notes in a separate column).  The editor was called "Prep"
and ran on Apple Macs.  I believe it's still being developed at CMU but
don't know who the official contact is.

                                                                 -ed costello
Case Tools & Information Dev.   * Mid-Hudson Valley Programming Lab * IBM E.S.
bitnet: costello@vnet             internet: coste...@vnet.ibm.com

*=BookManager is an IBM product.  I have nothing to do with it except that
  I use it on a daily basis.