Sorry to be vague, but I didn't want to give away all the details at this stage. To expand, the idea is that each school will become an 'expert' in a particular issue, so they will be receiving questions specifically about their topic.
We work in the area of global learning, so we're hoping that schools from around the world (particularly poor countries) will get involved. If it works well, a school in Japan might email a school in Kenya to ask them about the Great Rift Valley. The answer they get will come from students just like them, forming a connection they find in Wikipedia.
I had hoped that the LNM forum might include those in schools responsible for ICT, including the school's web-presence, and so I'd get an insight into how practical this might be to achieve in schools (or, perhaps, if something similar is already going on).
Sorry if I'm in the wrong place - any signposting to the right location would be great!
Ben