FriendFilter - Auto unfriend tool for Facebook
Zendesk - Zendesk is a beautiful, lightweight help-desk solution.
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Freshdesk - Freshdesk is a cloud-based customer support software that lets you support customers through traditional channels like phone and email, social channels like Facebook and Twitter, and your own branded community
Facebook friends feed - Facebook with stories only by friends and pages you follow
HelpScout - Help Scout is a simple, straightforward way to provide excellent support