I started getting these Visual Deals things popping up all over the Internet, even on my own blog. Spam like that drives me crazy because it is obviously tracking what I'm doing and will slow browsing down as well.
After research, I found that this was coming from a Pinterest add in for Chrome. You can disable it. If you're a Pinterest person or know people who are, you should share this so they can disable Visual Deals. Surely Pinterest can do better.