Look for Google to not only add a sentiment layer on search results, but continue to add social signals and features on the engine that drives query rankings. Similar rankings will make their way into social networks.
If this information, released last month, is indeed correct, it's a notable milestone. But is it true?
"Struggling to find the perfect gift?" Twitter asked. "Wish you could read people's minds to know what they truly want? Well, now you can."