Hallo Iam2 and Shawn,
thank's a lot for your feedback and the proposals.
I've had a look at the level-3 book and found the chapter for long distance group healing (p75).
In our today's healing-session we tried this technique (with the bubble, clapping hands and go-go-go) and it felt quite powerful.
During our healing sessions we are connected through voice-communication over the internet. We use the skype-software (freeware, www.skype.com) for this and it works great (with headset or the pc's loidspeakers and microphone). One can set-up conference-calls with up to 5 members (and all of that for free...).
I'll try to join the forum's group healing.
Love,
Axel