Judy - if you use Chrome for your browser, you can go to the Customize menu (3 short lines at the upper right corner of the boarder) and select [Tools][Extensions] to see what has been added to your browser. If you see something you don't recognize, disable it for a week, then delete it. These extensions make Chrome do all kinds of fancy things (like translate to English) or can pick up words that lead to sales sites (as you have now).