Mastermind Manager - Software for running mastermind groups
Zendesk - Zendesk is a beautiful, lightweight help-desk solution.
Interactive NPS Calculator (by Delighted) - Calculate your NPS easily with this interactive free tool.
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
Slack - A messaging app for teams who see through the Earth!
HelpScout - Help Scout is a simple, straightforward way to provide excellent support