Data Connectors are readily available for the tools like Double Click, Conductor, Click Tale etc.
For your Newsletter (Tool Name?), you need to define the purpose for the integration.
Check out Data Source and Data Feed or Data Warehouse options. Data Source is importing data to Adobe Analytics and Data Feed or Data Warehouse is exporting data to other tools. Both the process can be scheduled based on granularity but not real-time. For real-time integration you should have Adobe Analytics Premium or reach your Adobe Account Manager.