MQ – Messaging Queue
JMS
Java Messaging Service – 1 – Jboss
Java Messaging Service – 2 – Java EE Application
Rabbit MQ
Rabbit MQ – Introduction – 1 (Cluster Installation)
Rabbit MQ – Introduction – 2 (Java)
Kafka
Kafka – Introduction – 1
Push Notifications
Example – 1 (Server + Android APP + Channels)