Phew

[andrewducker]

Have seriously updated the Introduction to the Internet I wrote a few months back.  It now has a brief introduction to what a network is, so people aren't completely beflummoxed by it.  Also split it out into sections to avoid overwhelming people, and added a section on what makes the different filesharing programs different to each other.

As usual, any comments gratefully received.

Now... there's some dirty washing out there with my name on it!