Bing has a cool feature: just click the search box and you get a list of trending searches. Google has been testing a similar feature this year in the mobile search interface. It started as an experiment in the Google Search app for Android back in January and now I noticed the same experiment when visiting Google.com in Chrome.
Google shows 5 searches that are currently popular and most of them seem to be related to recent news. Obviously, Google's results include a lot of news articles.
"The difference between trending and normal auto-complete is basically the difference of showing search suggestions based on years of query history vs the past 48 hours of search query history (in the most simplistic way)," says Barry Schwartz, who reported about this last month.