Darkcoin!

Flattr is a social micropayment service, that makes it easy for you to "flatter" things on the internet that you like. When you're registered to Flattr, you pay a small monthly fee of your own choosing. At the end of the month, that fee is divided between all the things you flattered. You can even flatter things in the real world, with the Flattr Android app!

Ethereum is a decentralized platform for applications that run exactly as programmed without any chance of fraud, censorship or third-party interference.

Litecoin is a peer-to-peer Internet currency that enables instant payments to anyone in the world. It differs from its parent Bitcoin in that can be efficiently mined with consumer-grade hardware. Litecoin provides faster confirmations (targeted at every 2.5 minutes on average) and uses memory-hard, scrypt-based mining to target the CPUs and GPUs most people already have. The Litecoin network is scheduled to produce four times as many currency units as Bitcoin.

Dogecoin is an open source, decentralized, peer-to-peer cryptocurrency, favored by Shiba Inus worldwide.

Amazon Payments, Inc., is a wholly owned subsidiary of Amazon that provides a means to process transactions online. Launched in 2006, Amazon Payments uses the consumer base of Amazon.com and focuses on giving users the same checkout experience available on Amazon.com. Amazon Payments has several products for consumers, businesses, and developers.

Namecoin is a distributed domain name system based on the Bitcoin technology. Namecoin extends Bitcoin to add transactions for registering, updating and transferring domain names. Namecoin provides an alternative to the existing domain name system (DNS), in which names can be taken from their owners by groups that control the DNS servers.

FairCoin is a fairly distributed crypto currency. 99.99% Proof-Of-Stake, rewarding savers. All the coins were premined and fairly distributed to thousands from all over the world. Backed by a strong, diverse and committed community. Promotes prosperity and financial freedom with real value. Working to become the coin of fair trade.

Founded to facilitate safe instant payments between individuals and online businesses, Payza, previously AlertPay, is the rising leader in secure online payment solutions.

Skrill (formerly known as Moneybookers) is the cheaper way to send and receive money worldwide. Secure and convenient online payments. More than 10 million customers and 50,000 merchants.

What is Duniter ?

Peercoin is a P2P digital currency and payment system optimized for security and energy-efficiency.