CyberPatrol Parental Controls
Another thing I liked about this app is that it doesn't focus solely on porn. You can use it to allow or block other types of potentially objectionable content as well, such as those containing violence or hate speech.
Most of the applications you mention don't do much more than the controls in my Trend Micro Security Suite, and I suspect the other paid security suites have similar controls built in. Were you intending this list for people that use free anti-virus etc.?
Family Cyber Alert sounds like a key logger, I hope no one ever gets into your computer and hacks it's database.
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