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 ## Tools for teams & Collaboration
 
   * http://appear.in/ - One click video conversations, for free
-  * http://www.hall.com/ - Free for unlimited users with some feature limitations
   * https://www.flowdock.com/ - Chat and inbox, free for teams of 5 or less
   * https://slack.com - Free for unlimited users with some feature limitations
   * https://hipchat.com - Free for unlimited users with some feature limitations