1. Tesla.com - $11 million (2016) 

 Purchased by Tesla Motors to replace TeslaMotors.com. 

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2. Fb.com - $8.5 million (2010) 

 Bought by Facebook for internal use and eventually for rebranding. 

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3. We.com - $8 million (2015) 

 Acquired by Weidai, a Chinese financial services company. 

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4. 360.com - $17 million (2015) 

 Purchased by Qihoo 360, a Chinese internet security company. 

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5. IG.com - $4.7 million (2013) 

 Bought by IG Group, a financial trading company. 

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6. Hotels.com - $11 million (2001) 

 Acquired by Hotels.com for its global travel booking platform. 

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7. Vodka.com - $3 million (2006) 

 Purchased by Russian Standard, a premium vodka brand. 

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8. PrivateJet.com - $30.18 million (2012) 

 Bought by Nations Luxury Transportation for its jet chartering services. 

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9. Fund.com - $12 million (2008) 

 Acquired by a financial services company for investment services. 

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10. Voice.com - $30 million (2019) 

 Bought by Block.one, a blockchain company, for its social media platform. 

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11. VacationRentals.com - $35 million (1999) 

 Acquired by HomeAway (now part of Expedia) to keep it away from a competitor.

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12. iCloud.com - $6 million (2011) 

 Purchased by Apple for its cloud services. 

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13. Diamond.com - $7.5 million (2006) 

 Acquired by Odimo, an online jewelry retailer. 

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14. Business.com - $7.5 million (1999) 

 Bought by eCompanies, a business information platform. 

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15. Shopping.de - $2.85 million (2008) 

 Acquired by Unister, a German e-commerce company. 

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16. Candy.com - $3 million (2009) 

 Bought by a U.S.-based candy distribution company. 

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17. Toys.com - $5.1 million (2009) 

 Acquired by Toys "R" Us to strengthen its online presence. 

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18. Investing.com - $2.45 million (2012) 

 Purchased by Fusion Media for its financial services platform.

 

19. Clothes.com - $4.9 million (2008) 

 Acquired by Zappos for online retail. 

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20. Medicare.com - $4.8 million (2014) 

 Purchased by eHealthInsurance to enhance its healthcare services platform.