I agree with Vicki on the substance here. I'd just like to point out that once you strip away the undesirable "social" parts of "social networking" for schools, you end up exactly where we were in, say, 2003, except with a few more insights into usability. In fact, I think the vision (in primary and secondary schools!) is essentially the same as the portal visions we were having around the turn of the century, or the 90's groupware vision. You probably need to toss in digital portfolios, which have been around for the whole process, at least in theory. We are actually getting closer to having something usable through natural selection.
It is just a bit wearing to repeatedly sit through the cycle of having each new buzzword created, assimilated and neutered, while the software available to schools gets better really, really slowly.