First problem with censorware is that it doesn't work. I want you to imagine someone who leaves their toddler home alone being babysat by a robot. Wouldn't you agree that's crazy? Do you honestly believe any computer program has a prayer of determining "safe" content from bad content? I go to google right now, set safety to "strict" and type in "breasts" and while most of the images that come up don't show nipples, they do show... you guessed it, breasts. Huge bouncing breasts. And some of the pictures do show nipples.
Same test, only web search instead of image search, the word "tickle" and within the first 20 pages several sites come up that are sexual tickle fetish websites that have photographs, drawings, animations, video clips, and rated R erotic tickling stories. And you can continue doing this with other words that are relatively innocent, but are common sexual fetishes, i.e. feet etc.
Simply put, all censoware is either just plain not going to hardly block anything, or block just about everything. Here is an old article about why censorware doesn't work, why just about everybody knows it doesn't work, and why it doesn't matter that it doesn't work http://www.dansdata.com/censorware.htm
Then comes the morality of filtering, with or without software, what your kids are allowed to see and read.
Popular belief is children (any one under 18) are innocent angels incapable of impure, sexual, or malice thoughts, until some horrible person "exposes" them to something which will hurt them and scare their angelic minds. Nothing could be further from the truth. Kids are perverted, nasty, profane, cruel, selfish, malicious, by their nature.
I don't believe an image of a naked woman can "hurt" a little boy. I don't think it makes him into a rapist, or makes him autistic.
I've always wondered why parents assume "cuss words" and nudity will "hurt" children.
An interesting thing about raising a daughter and wanting to keep her away from perverted and dirty old men, and sex in general: the more you tell a girl she can't have sex, the more she's going to want sex with a boy the moment your back is turned. Yet when girls have the freedom to do what ever they want, they are surrounded by boys offering them sex all day long, and they get tired of the offers, and wish these disgusting jerks would leave them alone. But the moment she is told sex with boys is completely forbidden, now she wants sex from a boy. That's just how the female brain works.
And if you got a 13 year old boy, and you find some porn on his hard drive, or back in the olden days, a porn mag under his mattress and a jar of Vaseline under the bed, what you have is a normal healthy 13 year old boy. If your 13 year old boy shows no interest in girls, and you find precious moments figurines under his bed, that's when you should actually worry!
And if the internet danger is political ideas, well, school is going to indoctrinate the child into mainstream ideology, and there's nothing you can do about it.
And you can block MTV and everything else, but if a kid goes to school and everyone has their nose pierced, wearing their hat backwards, and listening to gangsta rap, your child will imitate that environment.
If you let your kids go to wikipedia, they can learn about gay culture, feminism, nazism, satanism, and so on. Of course if you block wikipedia they can't do their homework online.
So best bet is to let the kids explore the world, make up their own minds about things. I believe that is the moral decision. And even if you do want to blind your kids to reality, well, filters don't work, so just get 'em off the internet, home school them, and never let them leave the house, because all of their friends are going to have iPhone and Laptops and be showing each other raunchy jokes and disgusting things on youtube.
And if you're concerned about "cyber bullying" and he is sheltered from that, how is your kid going to deal with a good ol' fashioned real life bully who does more than say "you look like a queer" but actually says "let's smear the queer" and punches him in the face.
I mean, what is wrong with kids today. We used to all get bullied, pushed around and beat up occasionally, and we lived. Today's kids are killing themselves the moment you criticize their retarded "woe is me" poetry.
Maybe we're sheltering them a little too much as it is. Hey, maybe if we let them view some porn and horror movies we'd toughen them up and they won't kill themselves the day someone unfriends them on facebook.