story of Christoph and Point Nine
what scalability means and how to think about it
the SaaS playbook
Pricing vs. Sales
keytakeaways from SaaStock15 like product-market fit
and many more...
A big thanks to Christoph Janz for his time. I also highly reccomend his blog on SaaS and investing. You might also want to check the team blog from Point Nine @Medium.
Check this out if you want to master the SaaS business model
http://www.iceventure.de/saas-software-as-a-service/business-model-kpi-online-training.html