For latter references

Insights

• Only send emails to users that have interacted with your emails within the past 365 days
• Qualitative data is only as useful as your ability to extract insights out of them –
  • Use the Pareto Chart to organize themes
  • Apply 80/20 rule
• Apply efforts where 20% effort that leads to 80% impact
  • Tactics that work at smaller scale might not work well at larger scale

Source

• Reforge blog post – email delivery, cognitive biases and utilizing qualitative data
• Growth hack blog post on how to get to 1,164,418 customers
• Brian Balfour – building a growth engine
• Social capital’s diligence series