The following assumes that the key, not the value of %whop holds the names of the online users, which is what I got from reading the code sample.

First, lose the heredoc for simple concatenation. Heredocs are neat, but they completely destroy readability. This will do:

print "$newm<b>*</b> - ";
[download]

You could also build this hash during the file read just as easily and save yourself an extra loop.

Second, I suggest you create a quick hash from your text file and then look through %whop to do your work:

my %new_member;
foreach (@newest_member) {
   $new_member{$_} = '';
}

then for your loop (which as it looks now has the wrong outer loop goi
+ng):

foreach (values %whop) {
   if (exists( $new_member{$_} ) {
      print "$_<b>*</b> - ";
   }
   else {
      print "$_ - ";
   }
}
[download]