What exactly are you asking? Are you saying that, given a URL, you already know how to fetch the page, count the words, but you can't figure out how to separate that count from the count of the other pages? That seems so trivial that I must be misunderstanding what you've written, even though that's what you wrote. Can you post some code to clarify what you're really asking? It seems like what do you want to is really simple:

use HTML::TokeParser::Simple 3.13;
my %words;

foreach my $url (@urls) {
  $words{$url} = 0;
  my $parser = HTML::TokeParser::Simple->new(url => $url);
  while (my $token = $parser->get_token) {
    next unless $token->is_text; # assumes you only search visible tex
+t
    $words{$url} += some_word_counting_function($token->as_is);
  }
}
# %words now has the count of words per url
[download]

Admittedly, that uses a different module, but that shows how easy it is to track word count per url. Did I misunderstand what you were asking?

It works perfectly, thanks a lot Ovid! Yo saved me again :)
It seems I got more scolding than answering on this thread :s
I'll make sure not to post such vague and "codeless" questions in the future >_<

HTML::Parser works through callbacks that are triggered by various parsing events, so I'd imagine that one such callback (text_h ?) would be in charge of updating the count, but without more specifc details (and some source code to look at) it is hard for me to give you anything more concrete.

how to keep the count of how many times the word appears on EACH URL

You really mean each PAGE referenced by each URL, no?

I mean, what is the problem with

my $wordcount;
loop_over_each_url {;
  search_through_each_page_content {;
    $wordcount++ (everytime_word_match);
  }
}
[download]

It's easier for us to point you in the right direction if you show what you've accomplished so far and what exactly it is that you need help with.