This article reports on a possible new technology to be put out in the UK some time next year. The black box will be some sort of program that keeps track of all online activities and sends the information to a central government database.
This idea brings to mind the whole 'big brother is watching you' mentality. The English government would essentially know everything that everyone did online. I'm not a big expert in British law making so I have no idea how likely this sort of bill is to be passed, but I do know I hope our government doesn't get any ideas (or have they already?).
The really bad thing about this kind of forced surveillance would be an excellent way of stopping all kinds of p2p and file sharing sites and services. As soon as something is put up that people can trade over, the government would know about it and be able to take it down. The government would also be able to block certain content from being accessed. A world-wide internet black box could essentially halt any progression of the digital age becoming a read-write culture and make it a read-only culture.
I can't see people choosing (voting) to have this technology on their computers monitoring their activities. So I don't think that this idea will catch on, unless of course the government does it without permission, but I wont go into the subject of what the government does and does not tell us.