The best replacement for alfresco is sharepoint.

The best alternatives to alfresco are rated as following:
★★★★★  sharepoint
★★  drupal
★★  liferay
★★  documentum
★★  naudoc
★  openkm
★  nuxeo
★  al fresco
★  magnolia
★  confluence
★  knowledgetree
★  jackrabbit
★  pergola
  plone
  filenet
  sharepoint 2010
  opentext
  mindtouch
  fire magic
  adobe cq
  huddle
  owncloud
  knowledge tree
  livelink
  interwoven
  logicaldoc
  opencms

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Speaking about alfresco, one probably shouldn't forget about liferay.

Other search terms related to alfresco and their ratings are:
★★★★★ liferay
★★ activiti
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Google Trends

Scale is based on the average worldwide traffic of alfresco in all years. Click on graph for more.
alfresco
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