say your text is in a string (or an array of strings) then I would use grep and map :-) to get a list of all matches nicely formatted as list items, but for sure there is an easier way which refuses to come to my mind now :-)

perhaps this might do :-)

# the substitution is none in effect, it just digs around
$page2 =~ s|<title>(.*)</title>|${my_count(\$1)}|gi;
my matches = ();

sub my_count {
 my $occurance = shift;
 push @matches, ${$occurance} ;
 return $occurance;
}

# see what we've got
foreach (@matches) {
 print '<li>'.$_.'</li>'."\n"; # just to format the output :-)
}
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Have a nice day
All decision is left to your taste

Update