The proposal “Better Understanding the Heterogeneity of Tinnitus to Improve and Develop New Treatments – TINNET” has been approved by the COST Committee of Senior Officials. This project will help to improve our knowledge about tinnitus, the treatment of the tinnitus patients and increases the already fruitful cooperation among tinnitus researches in Europe any further. We are now inviting tinnitus researchers from as many european countries as possible to participate in the project.