I'm attempting to distinguish between pages whose content is controlled by the author, and those which are not. By my use of "maintained" I do not mean to imply that the author edits his own HTML necessarily (though I'm sure many do).
I considered "authorized", but I believe many of the fan-maintained pages are authorized at least to the extent that they asked if the author minded, so that's not the right term for what I mean.
Maybe I should have just said "controlled" and been done with it, but that looks funny back in the author listing.
And now I've gone and added "official" sites to boot. I couldn't bring myself to describe Kate Green's official page as a U of M faculty member as "fan maintained".