A question about windows 8

I just picked up a Windows 8 all in one. I have slowly been adapting to Windows 8. One thing that is infinitely annoying, that I can't seem to find a workaround to is this. When I play music, for example on youtube or from google play music, I don't just want to sit there and stare at the video. In Windows 7, I could minimize the browser, and do other things while listening to music. Now if I try to do other things, the video stops playing until I'm back in the browser. Is there a workaround for this? I haven't been able to find anything.

Also, as a Windows 8 newbie, I would love any cool tips or tricks as well.

Thank you