Just picked up my first Mac, the MBA 13" 128MB. I have read that OSX ships without flash, and, I've also read that flash is, mostly antiquated at this point. Fair enough however, one website I visit constantly requires flash. Khan Academy requires the ability to display flash content. I installed flash and it works but I'm concerned with flash helping to drain my battery from old websites loaded, etc... What can I do to break ties with flash yet still use this website? Thanks!