Envisage - Inject contextual help on your site. Point and click style.
Dotarchy - Pick a topic, discuss it, make some Friends
Moonshot - Discover trending cryptocurrencies priced at less than a penny
Commenze - Fully customizable comment sections for any website
Product Fit - Measure product/market fit in app with your users.
The Embedded Entrepreneur Book - How to build an audience-driven business