25iQ 25iq.com/2016/12/31/a-h…
CAC: 25iq.com/2016/12/09/why…
Churn: 25iq.com/2017/01/27/eve…
GM: 25iq.com/2017/02/04/gro…
Gurley abovethecrowd.com/2015/02/25/inv…
Skok: forentrepreneurs.com/ltv/
Theta Equity: thetaequity.com
"25iQ + term" in search engine.