Findings:

• Phantom queue
• bounded queue
• priority queue
• Message Queue
• I saw a queue and thought, "I'd better join it"
• FISH queue
• queue
• The inviolable censor created by the gaze of offline acquaintances
• offline world
• Offline key
• Offline Pick Titles Carefully (collaboration)
• offline algorithm
• E2 Offline Scratchpad
• The Offline Internet
• offline
• node offline
• Offline (user)
• messaging
• Multimedia Messaging Service
• edev: Guest User messaging fix
• Objective C messaging
• instant messaging

If you Log in you could create a "offline messaging queue" node. If you don't already have an account, you can register here.