Bing.com, Microsoft's search engine, has given some idea of how history will recollect the year 2011 when it comes to events and news stories.

Bing.com has released top 10 of most searched news of the year 2011, based on the aggregation of billions of search queries.

Though the scale of search is small compared to Google, Bing's search survey gives us a glimpse of what people would be searching for on Google or Yahoo.

So according to Bing survey, what was the most searched keyword?

Surprise, surprise - it is Casey Anthony's trial. The trial of the twenty-something mom who was accused of killing her 2-year old daughter Caylee and leading the police on a wild goose chase, ranked as the No.1 news story, upstaging even the news of Osama bin Laden's death even though it was connected to many 9/11 victims emotionally (No.2).

Casey, the young Florida mother, was charged with and then acquitted of, her daughter's murder and drew a lot of attention from people and her trial was extensively covered by the media nationwide.

So some people may even question about Bing's survey and wonder why Casey Anthony case has made people search and search. Of course, Casey's trial had media slobbering all over it but the trial was itself interesting in the sense that even as the prosecutors tried to portray Casey as a monster mom, one who chloroformed Caylee and dumped her body in the car (and later in the woods) to rot, the defense lawyers suggested that she was the hapless victim of sexual abuse from her father and her child had died accidentally.

The defense lawyers had the last laugh as the prosecutors could not prove Casey's guilt beyond reasonable doubt.

Even now, the facts of the case are not clear but the shocking acquittal of Casey Anthony still seems to be drawing people's attention. Perhaps some people are more interested in the mental and emotional status of Casey and must be wondering how she is coping with all the media glare.

Rest of the top 8 most-searched stories include Hurricane Irene (No.3) and Earthquake in Japan (No.4). And notably, pop sensation Justin Bieber was the most searched people of year 2011.

Start the slideshow to check out the top 10 most-searched stories of 2011.

The Casey Anthony Trial
Anthony smiles at her attorney Mason before sentencing at the Orange County Courthouse in Orlando Reuters
The Casey Anthony Trial
Casey Anthony (C) reacts with her defense team following her acquittal in Orlando Reuters
The Death of Osama bin Laden
A combination of images shows various takes of Osama bin Laden from video images released by the U.S. Pentagon. Reuters
Hurricane Irene
Residents walk along Highway 12 after it was destroyed by Hurricane Irene in Rodanthe Reuters
Japan Earthquake Tsunami
A giant crane pulls crushed cars out of the debris after the Kobe earthquake. Reuters
Seventeen-year-old high school girls Masumi Aoki and Sachiyo Otsuka offer prayer.
A new study on plate tectonics will allow researchers to predict when and where earthquakes will occur. Reuters
The Death of Amy Winehouse
Flowers and tributes are seen outside the home of Amy Winehouse in London Reuters
Joplin Tornado
Emergency workers and residents walk through a neighborhood after a devastating tornado hit Joplin, Missouri May 23, 2011. Reuters
Conrad Murray Trial
Dr. Conrad Murray listens as Judge Michael Pastor sentences him to four years in county jail for his involuntary manslaughter conviction of pop star Michael Jackson in Los Angeles. Reuters
911 10 year anniversary
The Tribute in Lights is seen from the Top of the Rock observation deck during events marking the 10th anniversary of the 9/11 attacks on the World Trade Center in New York Reuters
Republican Presidential Candidates Herman Cain Rick Perry
Republican presidential candidates Texas Governor Rick Perry and businessman Herman Cain listen to former Massachusetts Governor Mitt Romney during the CNN GOP National Security debate in Washington Reuters
Haiti Anniversary
Haitians take part in a vigil in honor of quake victims in Port-au-Prince Reuters
Earthquake Japan Florida Justin Bieber