Flattr!

Steemit gives users monetary rewards for any meaningful contribution to the platform. Of these contributions the most important are:- Creating or posting content which the other users consider valuable (like)- Finding valuable content and upvoting it

Patreon enables fans to give ongoing support to their favorite creators.

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.

Gratipay is a way to give small weekly cash gifts to projects you love and are inspired by.

Liberapay is a way to donate money recurrently to people whose work you appreciate.

Since the dawn of the commercial internet, people have puzzled over the problem of paying small amounts online. How can smaller payments be successfully implemented in a way that people would engage with?

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.

BountySource is a funding platform for open-source bugs and features.

Recurring funding for groups. Accept money without creating a new bank account, and be fully transparent about where that money is going.

Givers can motivate others to continue developing, and set Wishes (e.g. new features or issues to fix).