Web 2.0 .... Unexplained

Web 2.0. I had seen this written before but had not paid much attention. It was mentioned in detail in Scheffer's (2008) article about Guided Inquiry (GI) at Caddies Creek Public School. I thought it must be a computer program or application that you could buy which presented all the tools one required to set up such a unit. So I googled it. I was disappointed to find that it was neither of these things. It isn't something one can buy but a series of online opportunities for sharing information. I then found a site called Library 2.0 (it's American) and joined it but I think I'm in over my head and need to find something a bit more basic. What has become obvious is that the IT people in a primary school really need to also be trained in these tools to assist TLs and class teachers, particularly where there are a high percentage of teachers who have not grown up with digital technology. There is also a site called Class 2.0... Still not much help. I have bookmarked a report by the Victorian Department of Education into Web 2.0 to read and hope that it will shed some illumination. I am on the steep learning curve.