Other sites I've found:
http://sportsp2p.com/,
http://allp2ptv.org/,
http://www.p2ptvsports.com/Yeah, justin.tv streams do suck, but for Mac users like me it's the best we can get since I don't know any p2ptv apps that are Mac-compatible.

How to use SopCast on Mac OS X
You don't need Windows to run SopCast! If you have an Intel Mac, you can run it using a program called CrossOver (make sure it's 6.2.1 or newer). Once you do that, follow these instructions:
1. Install CrossOver
2. Start CrossOver and install IE6 from the list of supported software.
3. Download installer of media player 7 from:
http://www.microsoft.com/windows/window ... fault.aspx4. Install media player 7:
a) In crossover installer choose 'install unsupported software
b) select the bottle, which you created for IE6
c) mark option 'Choose intaller file'
d) click 'install' and browse to the media player installer file (mp71.exe or whatevere you downloaded)
e) step through the installation process
5. Download media player 9 from:
http://www.microsoft.com/windows/window ... fault.aspx6. Install it in the same way as media player 7
7. Download sopcast installer from
http://www.sopcast.com/download/If you download the zip file, unpack it . There should be sopcast installer file, like Setup-SopCast-2.0.4-2007-11-20.exe
8. Install Sopcast in the same way as mp7 and mp9, always select the same bottle although crossover might disadvise it.
9. Start sopcast and have fun.
NOTES:
param name="SopAddress" value="sop://broker1.sopcast.com:3912/41999"
If you can't get a picture in SopCast after following all these steps, click the button near the bottom of the player window that looks like two boxes overlapping. That opens the stream in Windows Media Player externally. Windows Media Player will look for the appropriate codec and install it. You can then close Windows Media Player and the SopCast player should work fine.
The SopCast Web Player won't work on a Mac. If you have a site which requires the SopCast Web Player, you can find the link by reading the source code of the site (cmd+U or option+cmd+U) and looking for a line of code that says: the value will vary. Copy the area inside of the value= quotes and paste it into SopCast.
Similarly, I haven't figured out a way to launch SopCast by clicking sop:// links in Safari. You can copy them and paste them into SopCast.
Using VLC if you get no picture in SopCast after following all the previous steps:
If you are getting a blank picture or one flickering white in SopCast when the stream claims to be playing, download VLC for Mac here:
http://www.videolan.org/vlc/download-macosx.htmlYou don't need to do it through CrossOver - it's a regular Mac program. Then, when you have SopCast open and it claims to be playing, go into VLC and choose File >> Open Network then paste this into the box at the top:
http://localhost:8902/tv.asfClick OK. Then go up to Playback >> Repeat All. A video window should by now pop up, and will initially be mostly gray, but will eventually get better in quality, assuming you are getting a decent download rate on the stream in SopCast.
Good luck...
Thanks to
http://ecric.net/forums/need-help/how-t ... -mac-os-x/