1. Litecoin: Open source P2P internet currency.
https://litecoin.org/
2. Namecoin: A trust anchor for the internet.
https://namecoin.info/
3. Project tyrus.
https://tyrus.java.net/
4. Ripple.
http://en.wikipedia.org/wiki/Ripple_%28payment_protocol%29
5. Ripple labs circling 30m
$${\$}$$
in funding.
http://www.pymnts.com/news/2015/ripple-labs-circling-30m-in-funding/#.VRLnJfnF98F