links for 2011-04-20

• 5 Graph Databases to Consider – ReadWriteCloud
  (tags: nosql)
• 3 Must Read Articles on Management for Anyone Involved in Enterprise 2.0 or Social Business
  (tags: enterprise2.0 socialsoftware socialbusiness organization)
• Alfresco updates ECM with Activiti BPM – The H Open Source: News and Features
  (tags: bpm cx alfresco bpmn2.0 activiti)