Some free parental control software are K9 Web Protection, Naomi and KidLogger. To download K9 Web Protection, go to K9WebProtection.com and click Free Download. On the download page, fill in the online form to request a free license key.
To download Naomi, go to CNet.com and enter "naomi" in the search text box at the upper left of the page. On the search results page, click the Download Now button beside the Naomi software, and click the Download Now button on the detailed product page to start downloading. To download KidLogger, go to KidLogger.net and click Download in the top menu bar. Click the Download button for an operating system to download this software.