What were the top online searches of 2011?

Charlie Sheen, Lady Gaga

(CBS) Is Justin Bieber gay? Is Kim Kardashian's butt real? Is Lady Gaga a man? Those were among the top searched celebrity queries of 2011.

First it was Bing. Now many more search engines are releasing their end-of-year most searched lists. We take a look at what was top of mind and on the tips of fingers in 2011.

Pictures: Bing's Most Searched List 2011

Apple's iPhone was the most searched keyword of 2011, according to Yahoo!. Between the device's expansion to other carriers and the release of the white version, along with the highly-anticipated unveiling of the iPhone 4S, it's no wonder the Apple product topped Yahoo's list. The other terms rounding out the top 10 included Casey Anthony, Kim Kardashian, Katy Perry, Jennifer Lopez, Lindsay Lohan, "American Idol," Jennifer Aniston, Japan Earthquake and Osama bin Laden.

Justin Bieber easily dominated online queries in 2011 to become the most-searched person of the year on Bing, beating out Kim Kardashian and Jennifer Aniston. Actresses Lindsay Lohan and Megan Fox, along with Jennifer Lopez, Britney Spears, Katy Perry, Lady Gaga and Miley Cyrus rounded out the most searched celebrity names.

According to AOL, Casey Anthony led the most searched terms of 2011, followed by the Gabrielle Giffords shooting and the royal wedding. Charlie Sheen's antics put him on the top of the celebrities list, and Justin Bieber and Kate, Duchess of Cambridge, rounded out the top three.

The most searched questions on AOL were very interesting and varied. They included 'How can I pay off my credit card?,' 'Is Whitney Houston pregnant?,' and 'Why did Dick leave Big Brother?'

Ask.com also released its most searched list of 2011. The top three were Kim Kardashian: 'Was Kim Kardashian's wedding fake?', Justin Bieber: 'Is Justin Bieber going to be a dad?', and Lady Gaga: 'Are Lady Gaga's face implants real?'

According to Ask.com, the top news search terms and questions were Earthquake in Japan: 'How big was the earthquake in Japan?', Hurricane Irene: 'What caused Hurricane Irene?', and Steve Jobs: 'How much was Steve Jobs worth?'

Tell us: What was on your mind in 2011?