To use this service, send an HTTP POST request to this script with a field named bookmarks whose value should be the content of your BINARY Bookmarks.plist file.
Example Perl script that will accomplish this:
#!/usr/bin/perl -w
use strict;
use LWP::UserAgent;
undef $/;
open(F, '~/Library/Safari/Bookmarks.plist') or die $!;
my $binary = <F>;
close F;
my $ua = LWP::UserAgent->new;
my $res = $ua->post('http://homer.informatics.indiana.edu/cgi-bin/plutil/plutil.cgi', ['bookmarks' => $binary]);
print $res->as_string;