GeoRSS is rapidly establishing itself as a useful lightweight format for exchanging point data. Based on the widely popular RSS format (motto: “not just for spam blogs!”), GeoRSS has found homes in Yahoo!, worldKit, and mapbuilder. Now Mikel Maron (one of our Where Fair superstars from last year) has released MGeoRSS, a Google Maps extension that handles GeoRSS. Says Mikel, “this can be quite useful for quickly building maps, like Node.London, and promotes an interoperable geospatial web based on a common data format.”