Room Escape Artist

 https://roomescapeartist.com/ 

Interesting. Trying to be a industry resource and meta-site for escape rooms. We'll see how the revenue model works out. 

Business Model Navigator

 https://businessmodelnavigator.com/explore

Good list of business models with examples. 

How to pay your rent with your open source project

https://plausible.io/blog/open-source-funding
Some business models and examples

The economics of all-you-can-eat buffets

https://thehustle.co/the-economics-of-all-you-can-eat-buffets/
lessons probably applicable to other businesses as well. 

Why it only costs $10k to ‘own’ a Chick-fil-A franchise

https://thehustle.co/why-it-only-costs-10k-to-own-a-chick-fil-a-franchise/
Hint: you don't really own it. You're just an operator. 

The Simple Business Model Used to Build a $2.4 Million Business

https://www.shopify.com/blog/sheets-and-giggles-business-model
Walkthrough by an actual ecommerce startup.

The Future of Podcasting is Subscription — Lessons from the History of Media

https://medium.com/the-raabithole/the-future-of-podcasting-is-subscription-lessons-from-the-history-of-media-d486bd693141
still not completely convinced

Studies Keep Showing That the Best Way to Stop Piracy Is to Offer Cheaper, Better Alternatives

https://motherboard.vice.com/en_us/article/3kg7pv/studies-keep-showing-that-the-best-way-to-stop-piracy-is-to-offer-cheaper-better-alternatives?utm_source=reddit.com
Yes, the "please don't make me steal" mantra is proven again.

Digital Media: What Went Wrong

https://www.nytimes.com/2019/02/01/business/media/buzzfeed-digital-media-wrong.html
Yeah, new digital media companies are struggling.

Open Source Business Models Considered Harmful

https://medium.com/@johnmark/open-source-business-models-considered-harmful-2e697256b1e3
Good point here: focus on delivering value, not squeezing money out of the user base.

Breaking Through Amazon’s Hype Machine

https://medium.com/s/story/breaking-through-amazons-hype-machine-5cbad0e90ee5
What's coming next for Amazon? Advertising?

How I’ve Attracted The First 500 Paid Users For My SaaS That Costs $5/mo

https://blog.inkdrop.info/how-ive-attracted-the-first-500-paid-users-for-my-saas-that-costs-5-mo-7a5b94b8e820
How to bootstrap your SaaS startup.

The high-risk, high-reward world of selling stuff on Amazon

https://www.cnn.com/2018/10/09/tech/amazon-sellers-marketplace/index.html
Selling on Amazon? Is Amazon really your partner? 

The List That Made Her Millions

https://medium.com/the-mission/the-list-that-made-her-millions-90bfab80b0c3
The origins of Angie's List.

Four Questions Every Marketplace Startup Should Be Able to Answer

https://medium.com/@jgolden/four-questions-every-marketplace-startup-should-be-able-to-answer-defb0590e049
I've lost count of the number of people who've come to me with marketplace ideas over the years. Here's some great winnowing questions I wish I'd had.

14 Rare Lessons on Raising Money From a Serial Entrepreneur With 30 Years of Pitching Experience

https://entrepreneurshandbook.co/14-rare-lessons-on-raising-money-from-a-serial-entrepreneur-with-30-years-of-pitching-experience-9914d35b4f36
Great advice on pitching an idea to investors.

Venture Capital Is Ripe for Disruption

https://medium.com/s/understanding-venture-capital/venture-capital-is-ripe-for-disruption-1313b909a7bc
Yet another industry ripe for disruption. I've known the VC model is broken for a couple of decades.

Lessons from Spotify

https://stratechery.com/2018/lessons-from-spotify/
Good tutorial on the economics of startups using Spotify as an example. 

How To Tell If An Industry Is Ripe For Disruption

https://medium.com/swlh/4-ways-to-tell-if-an-industry-is-ripe-for-disruption-b599f657c788
There are a couple of industries that hit all of these criteria. 

The Model 3 Is Further Proof of Tesla's Asymmetric War Against the Auto Industry

http://www.thedrive.com/new-cars/13058/the-model-3-is-further-proof-of-teslas-asymmetric-war-against-the-auto-industry
This reminds me of the fight between Nokia and the iPhone: The Auto Industry vs. Tesla.