This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
Hmm, got part of it solved. HTTP Tunneling allows ActiveMQ to work over firewalls. But the performance overhead problem is still unsolved. Another new issue : will there be reliability issues due to connection-less nature of HTTP?