Big Brother

I suppose all email programs are different.
On my email program, I've started to notice that the content of the emails I get is reflected in the rest of the page.
This morning I got a letter from a friend about her health.
On the edges of the screen were all these links to health problems.

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I had this strange feeling that someone was looking over my shoulder as I read my friend's letter.
"Oh yah, that's so irritating - I hate it when that happens. You could try some of these products."
Everyone seems to be so concerned with their privacy on the internet. I've never seen any comments about this.