Main channel is:
#airhacks, fallback is
You can use the channel for questions / discussions, particularly during the monthly airhacks Q & A shows: http://www.ustream.tv/channel/adambien
You can still ask questions via twitter mentioning me: https://twitter.com/AdamBien or using the hashtag #airhacks. However, IRC is faster, more interactive, and easier to handle.
On demand workshops: Java EE 7: Bootstrap, Effective, Testing and Microservices available for streaming.