User Activity

Global shipping costs appear to be low (shipping heavy stereo speakers (2) from Michigan U.S. to British Columbia Canada,How is real cost applied to my invoice. I'm sure e-bay won't swallow the additional $$$.
Global shipping costs seem unrealistic, and low.how is the real cost applied to my invoice?
I see an outbid notice on at least 4 items I have bid on...all refer to a "private listing, bidders identity protected"..What is this ?