This document is a summary of a presentation given by Alexander Gesinn of gesinn.it titled "semantic-apps in 5 minutes" at the SMWCon 2011 conference in Berlin on September 22, 2011. The presentation discussed how social networking tools are more effective when they incorporate objects that connect people, and described how semantic apps can be used to build business applications around common social business objects organized by domain. It provided an overview of how semantic extensions in MediaWiki can be used to create categories, properties, forms and templates to integrate existing applications and enable quick development of social business applications.