Twilio - Brings voice and messaging to your web and mobile applications.
Collapsed - Learn lessons from failed startups
Plivo - Plivo simplifies your customer engagement.
Failory - Failory is a community visited by startup founders every day to read articles about entrepreneurship, interviews with failed and successful founders, insightful postmortems and our monthly reports.
MessageBird - Reach 7 billion phones in seconds via SMS, Chat & Voice. Try it for free and improve your communication.
The Google Cemetery - A list of dead Google products and why they died