easyrec is a recommender system that aims for easy integration of recommendations into web applications. It has a web based admin tool, and its recommendation engine is accessible through a REST API, providing methods like 'other users also bought'
Basic Electronical Medical Management (BEMM) is an application to control medical data of a set of patients. It is built on top of open source technologies, to provide an integration skeleton of mvn, Datanucleus, Spring, Vaadin, Acceleo technologies.