(Reuters) - Amazon.com Inc said on Tuesday independent businesses selling on its platform crossed $4.8 billion in worldwide sales from Black Friday through Cyber Monday, an increase of more than 60% from a year earlier. More than 71,000 small- and medium-sized businesses worldwide have surpassed $100,000 in sales this holiday season to date, Amazon said. (bit.ly/2JePBBn) Reporting by Aakriti Bhalla in Bengaluru; Editing by Shounak Dasgupta