Google has released the search volumes its trend for the late Michael Jackson. This is what Google blog says
""Search volume began to increase around 2:00pm, skyrocketed by 3:00pm, and stabilized by about 8:00pm. As you can see in Google Hot Trends, many of the fastest rising search queries from yesterday and today have been about Michael Jackson's passing (others pertained to the death of another cultural icon, Farrah Fawcett). People who weren't near a computer yesterday turned to their mobile phones to check on breaking news. We saw one of the largest mobile search spikes we've ever seen, with 5 of the top 20 searches about the Moonwalker."