After succesfully testing a spanish version for the spanish /. Barrapunto, let me introduce you to the Slashdotometer, a page that processes current and last slashdot XML file, and assigns temperature to each news item depending on the number of new comments; hot topics have many new comments, and appear in red, cold topics have no new comments, and appear in blue. The code is written in Perl, is only 90 lines, and is free under the GPL.