UserGuiding - User onboarding made easy, for less. Create product walkthroughs in a couple of clicks, without breaking the bank.
Startup Graveyard - History shouldn't have to repeat itself
Usetiful - Fight user churn with great user onboarding. Interactive product tours and smart tips significantly improve your user retention.
Startup Failures - Share your failures and learn from mistakes
Userlane - Digital adoption platform with interactive guidance for software applications allowing anyone to understand and master any software from the get-go.
Google Graveyard by SaaSHub - The Google Graveyard is the complete list of discontinued products by Google. Also known as 'The Google Cemetery'