There is a series of books out that is probably YA about a boy and a girl who want to find out why no one will go to an old mine and they video everything and talk back and forth on the computer (even talk about overriding parental controls). In fact the books are actually interactive and the reader can sign in and see some of the videos on the books website.
I will try and remember the name, I only read the first one. But it was before I started keeping a list of books read on my blog.
It does really well in going from being in person, to being on the computer, to video. (I actually read it at a time I did not have access to a computer and had to wait until I took the book back to the library to see all the videos.)
I will try to find the name of the book for you.