Some things that I have tried that work cross platform, mostly because they run in a browser:

ustream - http://www.ustream.tv - works well for one-to-many broadcasting
mebeam - http://www.mebeam.com - multipoint conferencing
stickam - http://www.stickam.com - multipoint conferencing


Ed wrote:
On Mon, Mar 23, 2009 at 11:58 AM, Joe <lists@joefleming.net> wrote:
  
Thanks for that, I had no idea Adobe had anything like this. The only
downfall is it's limited to 15 participants at a time. Their Connect Pro
solution might work though, I don't see anything about a participant
limit. They don't have pricing for that online though, which leads me to
believe it's pretty expensive. Still, thanks, we'll check that out!

-Joe

    

Joe -
If you get more than a few folks into a meeting you want broadcast not
conference ware - icecast will broadcast audio & video, good for a
group that doesnt need to interact in channel. Pair icecast with an
Asterisk VoIP conference for audio feeedback and you should be able to
handle a good size group.
Ed

  
Judd Pickell wrote:
    
This works on macs, windows and linux:
http://www.adobe.com/products/acrobatconnect/ but not entirely sure if it is
everything you are looking for. There is also a pro version which may offer
more features that would be useful.


On Mon, Mar 23, 2009 at 11:06 AM, Joe <lists@joefleming.net> wrote:

      
My company is in the process of trying to set up virtual meetings,
including things like screencasting/sharing, voice, video, whiteboard,
etc. The office is all Mac, our clients are mostly Windows, and I'm on
Linux. We've been trying to find something that will work for everyone
and is easy to use, but so far haven't come up with much. Webex seems to
work, but I can't get screen or document sharing to work from Linux, and
it also lacks voice. Most of the others either didn't run at all or
don't have any Linux client.

Recently I set up a VNC server on my machine and used our VPN to
broadcast back to the office and Skype to handle the audio. It worked,
but not well, and it's definitely not something that we can use with our
clients.

So, fellow Linux users, got any other suggestions for what I should be
using? I'd settle for something that didn't have voice if everything
else worked really well, but of course, I'd like to have everything in
one package.

-Joe