Beach ball in Safari
I find that when I am using Safari, especially on Twitter or Facebook, I get frequent and annoying beach balls which take about 30 seconds to stop. Things go back to normal, but it happens again and again. It seems like something is trying to load. Using Firefox, it never happens, so it's specific to Safari.
Is there some way to identify a process or something to check to see what is causing this in Safari?
iMac Line (2012 and Later)