Funnster - The best way to get together with your friends and family
Keybase Chat - End-to-end encrypted chat built into Keybase
Circus - Fastest way to see who's going out and where they are going
Pithos - pithos is a daemon which provides an S3-compatible frontend for storing files in a Cassandra cluster.
Gmail - Gmail is available across all your devices Android, iOS, and desktop devices. Sort, collaborate or call a friend without leaving your inbox.
Pandora - Pandora Radio is a free (ad-supported) internet radio founded in 2000.