Bing is now recommending additional search queries to try out and websites to check out based on your activity and what's popular. I am not sure how new this is but this was pointed out to me by @NFG946 on Twitter.
Here is the screen shot, that I can replicate for a search on [search engine optimization]:
It says "Recommended to you based on your activity and what's popular • Feedback." When I click on that feedback link, it loads a broken page. So I guess this is new?
It is unclear where these popular recommendations are coming from but I am able to replicate it.
Forum discussion at Twitter.