I am still thinking about a good name, a label or categorisation for this website. Up until recently, we called it a "meta-community" as it is designed to bring communities together. You can get an idea of how we imagine that this could work by looking at the Poster my colleague Lydia and I designed for Communities and Action: Prato CIRN Conference 2007.
Digital Arts & Humanities - the idea of a meta-community
However, meta-community also can give the idea that we want to put us on top of existing communities. I am not sure about this, but I can see that you could read it this way. While thinking about it I wondered how you would call a place that helps communities (and individuals) to exchange ideas and all sorts of information. Maybe a "community exchange"?