[Rob]

I know that if I visit site A Site A will collect some data on my browsing and use of that site. If I visit site B, the same will happen. If I return to site A, that site remembers me, and may offer me some information based on my last visit.

What I so not expect is that having visited site V, I find that site V continues to track my browsing of both visits to site V, but also lets site X know that I'm visiting site A & B, so that site X can tell site C what ad to display when I go there. That isn't privacy in any form whatsoever.

For a long while VM, or at least the old NTL Ts& Cs or AUP said they didn't track what what it's users were doing. When did that dissappear and why wasn't I told as to me that is a very significant change in what they, my ISP can do.