Sound PHP Engine (s-p-e) is written in PHP and uses MySQL.
With s-p-e you can publish news, articles and bulletins; comment them, have access to their printer-friendly version. A kind of a search engine is also implemented inside s-p-e.
s-p-e can be better than other CMS because:
1) it is free (as in freedom) software;
2) it uses only sessions and NO client-side cookies (the feature works when the
php.ini file on the web-server contains "session.use_cookies = 0" string...