Money earned from the internet is known as digital/electronic money. People who earn money from the internet, they get paid money in electronic form by payment processors such as skrill, perfectmoney, alipay, paypal, bank-wire transfers because online workers are worldwide.
Last month, I got $20 from online surveys. The money was sent to my bank account via online payment processor. Now if I buy 2 shirts using debit cards at offline or online stores, there is no cash involved but I have 2 shirts.
Bitcoin is a part of digital money. How is digital money is your country ??
Electronic money is a new level of cashless transaction. also it is a new way of earnings to many people. in my country (INDIA) RBI has issued a notice to banks to stop the transactions of digital money. so investors of INDIA are in a bit trouble.