Project website: http://www.adempiere.com/
Project Information: ADempiere is a commons-based peer-production of Open Source ERP Applications. The word ADempiere in Italian means "to fulfill" or "to accomplish".
Books on Adempiere:
Project website: http://www.alfresco.com/
Project Information: Alfresco is the leading open source alternative for enterprise content management (ECM). It couples the innovation of open source with the stability of a true enterprise-class platform.
Books on Alfresco:
Project website: http://ws.apache.org/axis2/
Project Information: Axis2 is a Web Services / SOAP / WSDL engine, the successor to the widely used Apache Axis SOAP stack. There are two implementations of the Apache Axis2 Web services engine - Apache Axis2/Java and Apache Axis2/C
Books on Axis2: