Collection of interesting banking and payment technology blogs

For quite some time I have already planned to share my feedly Banking Technology and Payments feed list of interesting banking and payment technology/innovation related blogs that I follow and consume frequently. These blogs cover a broad area from central bank announcements to discussions on business model and technology innovations in the financial services industry. Post frequency in the linked blogs varies:

If you can recommend further sources, especially ones focusing on the German/European market, please share!