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This project provides an alternative to the Lucene based search of umbraco. Instead of connecting the Lucene index it iterates through the umbraco.presentation.nodeFactory object model. Besides the definition which nodeTypes should be searched are stored in an xml config file.
My dream about it is to implement a provider based search where you can plugin Lucene or ss4u underneath and don't have to change the website search functionality. This is the first step (though it is without the provider model). So if you are interested come join the project.