Two examples that we have plenty of experience of:
Many people keep semi-private on-line diaries so that their friends and others, even people they don't know, can read them.
Other, perhaps not so well-known way of sharing, is having IRC channels
and keeping your chat clients (agents, if you prefer) permanently on-line
(first attach, then just de- and retach) so that all discussions go to
log files or to the backbuffer. This way the things friends tell publicly
to other friends can be "heard" later also by those who happened not to
be present that very moment. The dynamic multichanneling and messaging
features in IRC help choose a specific audience for every sentence
One interesting thing related to this is how the net makes people move. I mean, before these communication systems really worked many visionaries predicted that telecommunications would reduce the need for travelling dramatically. Quite the opposite has happened so far as most people who make friends on the net want soon to travel to meet them - sometimes cross the world.
Friends simply want to spend time with each other - experience together. This might work better over the net if virtual reality techniques one day fulfill their promises but I don't think that's going to happen in near future. Sitting in airplanes is more likely for us. Party sharing experiments are still interesting! Parties are often the ultimate experiences that we live for and they really ought to be shared if net is supposed to be any good.
Most importantly: what do you think that the future of you and other net kids will be? Do you know, if you even want to know, what kind of life you are hoping to live in the future? What is your dream work, family etc?
Of course it's important to bend those borders and try to make
a change if we believe in something different but I'm always not sure if
we can do it the right way. Or should we even care? Many net groups tend
to isolate from the rest of society. Does it necessarily have to be that
bad if everyone's happy that way? Societies are divided in separate entities
anyway and as long as we have interfaces and standard enough protocols
to operate with other groups everyone should be happy. Rough consensus
and running code! (i.e. no net evangelism, please)