Bitcoin is the world's first decentralized digital currency and online payment system, which allows users to conduct transactions without the need of any third party intermediary (banks for example). It is one of the cryptocurrencies.

Neteller is a payment system provider based in the British Isle of Man and regulated by Financial Conduct Authority (reference number: 900015). It was founded in 1999. It is operated by Optimal Payments PLC, a company, which is publicly traded on London S

Skrill (formerly known as Moneybookers) is a British electronic payment, storage and money transfer system that is operated by Skrill Group, which is owned by Optimal Payments Plc. Skrill was was founded as Moneybookers in 2001 and by its functionality is

PayPal is an electronic payment, storage and money transfer method that is operated by PayPal Holdings, Inc., which was owned by eBay Inc. from 2002 to 2014. Founded in 2000, PayPal was one of the first and currently is one of the most popular online serv

WebMoney is an electronic currency system operated by WM Transfer Ltd. It was founded in 1998. There are several e-currencies circulating in this system, with the most popular being - WMZ (equals 1 USD), WME (equals 1 euro), and WMR (equals 1 Russian rubl