Here you can find the site of the Federal Commissioner for Integration Maria Böhmer including up to date information, news and much you need to know about integration and migration.
Bundesbeauftragte für Integration
By means of the Programme on Intercultural Conflicts and Social Integration the Social Science Research Centre Berlin offers an extensive overview particularly on relevant publications.
The homepage of the German Federal Ministry of the Interior provides good tips especially regarding immigration as well as calls for proposals and the latest information.
Bundesministerium des Inneren
One focus of the work of the Hertie-Foundation deals with the promotion of European integration and with projects committed to this subject.
The Research Group European Integration, registered association (AEI) is an interdisciplinary scientific union aiming at the preoccupation with European integration and the development of the EU.
Arbeitskreis Europäische Integration e.V.