Froged - One click solution providing easy-to-use marketing, sales and support services to turn website visitors into happy customers.

Pithos - pithos is a daemon which provides an S3-compatible frontend for storing files in a Cassandra cluster.

Keep Your Friends Close - A free e-book about maximizing Customer Lifetime Value

Pandora - Pandora Radio is a free (ad-supported) internet radio founded in 2000.

Intercom on Customer Engagement - A book on how to create messages that drive engagement

Keybase Chat - End-to-end encrypted chat built into Keybase