Contrary to popular belief, most search engines ignore the keywords on a Web page. So don't go crazy with them. Just use your keyword phrase once or twice in a couple of combinations. My keywords for this page will now be:

parental controls, parental control software, pornography blockers, pornography filtering, internet safety, web safety

For the description, I want something short that explains what the page will be about and uses my keyword phrase once (or maybe twice).

The description is used as the description in search engine results, so I want it to say something that will get people to click to the page. My new description is:

Parental control software can help parents protect their kids from pornography on the Web. And Web developers can do their part to make their sites safer and ready for parental controls to validate.