Alternatif untuk Groove untuk Software as a Service (SaaS) dengan lesen sumber terbuka

• Software as a Service (SaaS)
  Semua platform Windows Mac Linux Chrome OS Android iPhone Windows Phone Blackberry iPad Android Tablet Web Self-Hosted Software as a Service (SaaS) PHP Windows Mobile Slack Chrome MySQL Community Edition Google Apps Trello PostCenter
• Lesen Open Source
  Mana-mana lesen Lesen percuma Lesen Open Source Lesen komersil