Edisyn (European Dialect Syntax) is an ESF-funded project on dialect syntax. It runs at the Meertens Institute in Amsterdam from September 2005 until September 2010. It aims at achieving two goals. One is to establish a European network of (dialect)syntacticians that use similar standards with respect to methodology of data collection, data storage and annotation, data retrieval and cartography. The second goal is to use this network to compile an extensive list of so-called doubling phenomena from European languages/dialects and to study them as a coherent object. One of the deliverables of the Edisyn project is a web-based search engine to search different linguistic corpora simultaneously and show the combined search results.