I had a short conversation with a friend last night. He's an IT pro who has a plan to get the Gedolim of the Yeshivish/Chareidi world to accept the Internet. Of course, all objectionable content would be filtered out. In this way, he reasons, situations such as the one in Lakewood (where, no doubt, some parents are clandestinely flouting the no-Internet edict) people could be above-board and open about their Internet use and have all the conveniences of the Internet.
My feeling on the matter is that it would never work. The reason, very simply, is that they have neither reason nor desire to permit it. Sure, it may be possible to filter out the objectionable content with a 100% guarantee. Sure, you may make it possible to only allow certain sites to be viewed. You could meet all the demands that they may put on you from a technical perspective, nonetheless, my feeling is that it will never work - at least not in the next ten years.
The official reason they may provide is that they have heard that no filter is 100% safe, and that even one possible viewed image is enough to corrupt. Never mind that you may be able to prove that it is 100% effective, they will still quote the line as if it were Halacha L'Moshe MiSinai - unalterable and immutable. And that will be the end of the discussion.
The *real reason* that it would never work is that they want Jews to not have access to information about the world around them. They'd rather live within their insulted and isolated communities and not have anything to do with the outside world. They'd rather return to a shtetl-type existence, where each community is self-sufficient and has no need of the outside world. Since communication with the outside world is, perhaps, the main benefit of the Internet, it goes without saying that they certainly don't want to accept it.
My friend pointed how ironic it is that, throughout history, Jews have never been always been at the forefront of accepting new technology; but now, we have become the Luddites.