Ryan Dunn in June death became more important than Google+ launch in June and Amy Winehouse death in July contributed to web sympathy. Both Ryan and Amy has been in the search headlines in June and July.
Tragedy in Norway resulted in some “popularity” of Anders Behring Breivik, and Bulgaria tragedy in Russia also has its impact on web search trends.
Ryan Dunn hitted search top in June after his death on June 20, 2011 when his Porsche 911 GT3 came off the road and hit a tree in West Goshen Township, Chester County, Pennsylvania. Ryan Dunn was best known for being a member of the Jackass and Viva La Bam crew.
Amy Winehouse search breakthrough in July started as she was found dead at 3:54 pm BST on 23 July 2011. Amy was an English singer-songwriter and well-known for her deep contralto vocals and mix of musical genres including R&B, soul and jazz.
Source: Google Insights