I'd like to partecipate. I prefer a textual chat over audio (I'm not sure if that was asked, but now you know :-)) Google Hangout is fine, but almost anything else goes as well.
I work in three shifts so my availability is completely random. Besides I live in the Central European Time zone unlike most of you (I think). For North America the difference 7 hours on average (I'm ahead) so probably the best moment for the chat would be when it's morning/noon there and evening here. In the coming week the most adapt days for me are Monday, Tuesday and the weekend.
I'm new here in WikiTree so I don't have much experience yet. However, I've started working on the regional categories, so that's the topic I'm the most interested in.