Quantum physics is fundamental for our understanding of nature, and consequently at the centre of the development of new methods and technologies. Presently quantum physics is confined to its separate worlds, separated by deserts of classical physics. For quantum physics to emerge from fundamental research, one of the main challenges is how to pool the advantages of the different quantum systems by linking them to each other and preserving the quantum nature also over the link. One has to be able to quantum interconnect the different domains. A robust technological basis for this is currently not available. In the talk I will discuss two such links: (1) The connection of a flying photonic qubit which can be transmitted through quantum communication channels to an atomic quantum memory, and (2) a pathway to integrate solid state qubits with the help of CPW resonators to such an atomic ensemble or spin ensemble quantum memory.