This paper lines up an easy-to-read accumulation of actual buzz concerning the main topics of Open Source and SOA, mixing in technical Java centric solutions like DWR and Spring down to the source code layer where necessary and appropiate. This is not a technology comparison nor a Java compendium. This paper is based on a selected stack of tools, solving problems with a solution centric, user and business aware fashion. Besides basic principles of SOA and Open Source, the connections and interdependencies between all participating terms like Web 2.0 and Usability, Open Source and Business, Frameworks and Productivity are revealed.