WaterOuzel is a Seaside-integratio of the JavaScript-based "Blackbird" logging console by G. Scott Olson. He adequately states the purpose of the project in the single sentence "You might never use alert() again." For details see the Blackbird homepage (http://www.gscottolson.com/blackbirdjs/) or the example application. And if you wonder about the name "WaterOuzel" - well, it just seemed appropriate for a blackbird flying at the seaside ...