One thing I can't seem to resolve with W3TC is YSlow giving my site an "F(0)" for Add Expires headers. It lists "26 static components without a far-future expiration date". Looking at the 26 they seem to all be things like the three examples listed below. I am thinking this is unavoidable since these might be scripts that are hosted on the other party's servers, not mine? I don't fully understand scripting though so if there is a way for me to get the expire dates for these fixed, I would like to know. Thanks!