Are you sick of the new 10 person limit? Well, I found another really cool screensharing thing- Screenleap.
It's a lot like Join.Me from what I can tell, but you don't have to download any program- it goes directly from your browser.
It's free, and you can have more than 10 viewers- and yes, it does have sound, from what I can tell.
Edit: It has a two hour streaming limit per day, so I don't really recommend this one.
I found another program- this one does have a user limit, but it's 96, and there is not streaming time limit.
No longer streaming